Links

Creates up to 100 anagrams based on the word you enter.

Photographic illusions to re-awaken your senses.

Book reviews relevant to birding in Mexico.

Commercial fly-swatting as a naïve intend to free us from the obvious and unsubtle brain control imposed by a lower lifeform in the human realm.

Poetry mostly in Danish.

Creates a quick and simple link for use in mails or the like.

Distribution of all the 98 Danish municipalities.

A yearly compilation of changes to the ebird/Clements taxonomy relevant to Mexico. Latest November 2022.

Easy-to-use calculator to find exact distances between two or more points on the globe. Only inconvenience is that every new calculation session starts from zoom level 0 [the entire globe], why you have to scroll, scroll, scroll to get to your prefered locations.

That which is not public.

Quiz administration!

Quiz yourself to a richer world!

An attempt to what the bird list for Rancho Primavera in El Tuito, south of Puerto Vallarta, Jalisco could look like. In present state it reflects the status per 2019, but the work was never approved or commented by the owner, and is therefore not continued or updated.

My own bird reports.

Freezing the moments of uncontrollable imagination and emotion as the days go by.

Cheaper and more primitive cabins than nearby Hotel Puerta Calakmul. Good recommendations. Will go there January 2020 to try myself...update to come.

Camping facilities in the middle of the jungle along the road toward the ruins. Reservations can be made via booking.com and other portals. Or phone: +52 044 983 134 8818. No website anymore.

Fully equipped cabins with a good restaurant service. This is the closest you can stay to the Calakmul ruins in a comfortable manner. It is rather expensive, but saves you the 50 kilometers drive from Xpujil in the morning, and in the evening too...

Website appears dead, Sep 2024. Lies south of Puerto Vallarta close to the village El Tuito.
Cabins and guest houses. The guest houses are normally rented for minimum 3 nights and will have breakfast included.
The 3 cabins (fully equipped houses. Really!) are rented without food service and the two larger ones only for at least two nights. The smaller one per night.

Bungalows in the southern part of the town center. Quiet neighborhood and modest prices. A good choice.

Good hotel in San Blas. Big but rather expensive. Really good restaurant, El Delfín. The standard choice of much birding tours.

Probably the best hotel in town with middle low prices. Is located nicely away from the town center, thus more quiet in the night. Breakfast included normally, if you have time to wait for it before heading to Vigía chico road...

More expensive than hotel Río Vista and without the river view. But they have many hummingbirds visiting their feeders. It is posible to go there to have breakfast and photograf these charming angle birds.

Birder friendly hotel with a spectacular view toward the river and good birding right from the terrace in the morning. One of the owners is working as a bird guide as well, arranging trips to the river and surrounding areas. OBS: No website any longer. You will have to find them elsewhere, like FB or reservation sites.

No website.
Cabins in the middle of the reserve. Different sizes (pt. 4-bed cabin 1300 Pesos/night, 2-bed cabin 900 pesos/night). Limited access to electricity for charging devices, but good mobile signal in open areas. Hot water for shower, but no refrigerator. Close to village El Palmito, where you find a very limited selection of eating places. So it will be nothing fancy, but you won't starve to death.

Contact Santos (Spanish only):
+52 669 218 35 67 (casa) or 694 116 19 89 (mobile).

He works as guide as well, if you would like to hire him. Can be an advantage the first time you're there. Is paid separately.

Ecological camp with activities like bicycling, kayaking, mangrove trips and swimming. Beautiful lushful surroundings. Worth it both for the common tourist and the serious birder.

No website anymore. Simple hotel on the water front. Few rooms it appears, and you have to pay with cash. A basic breakfast is included. Mexican Sheartails at the hummingbird feeders, and they can provide a boat to do the ría (estuary). 1500 pesos, January 2020, for a birding boat trip of duration 3-4 hours.

No website.
Good little hotel in San Felipe. Rooms 8, 9 and 10 with topfloor balcony and view of the ocean. No web site but contact here: hotelsf@hotmail.com or hotelsfjesus@hotmail.com.

Nice middle priced hotel lying right on the seafront. Mexican Sheartails at the feeders.

Global knowledge-base with accounts for almost 9000 amphibian species. Description, map and sound recordings.

Atlas project covering the amphibians and reptiles in Denmark.

List of illustrations and calls of 14 common European frog and toad species.

"AFRING aims to improve and promote bird ringing initiatives and programmes throughout Africa.".

To report banded birds found in Denmark. The Danish Banding Central under Copenhagen University.

Use this page to enter your European banding observations, and get an instant reply about your bird if it is in system.

Coordinating bird ringing throughout Europe. You can report a find here too.

Resource about banded geese. Mostly from a European perspective. Can be used to report your own findings. (OBS, doesn't look active anymore. Last news is from 2021).

Report birds banded in or found in Norway.

To report banded birds from Poland, you can use this formular. Also in English.

If you find a banded bird, you can report it here. First of all if the bird has been banded in North America, but they can probably pass on the information if necessary.

Big collection of pictures of butterflies and moths from Canada, USA and Mexico. Inclusive text, maps and more.

Hugh collection of butterfly pictures from North and Central America including the Caribbean. Only photos but very competent.

Association covering the public interest in butterflies in Canada, USA and Mexico.

Survey of the butterflies of Denmark.

Lars Andersen († 2025-06-25) Danish daytime butterflies. Danish species primarily but Nordic and some rarer European species treated also. The site is a navigational nightmare, but the content useful. With Lars dead now, it is probably a question of time before the site is removed.

Website of the Danish Lepidopterological Association. Extensive source of information about the butterflies in Denmark.

Swiss private site with photos and general species information including identification tips. Also flora and other fauna of the region.

Butterfly Conservation Europe is a partnership organisation focused on halting and reversing the decline of butterflies, moths and their habitats throughout Europe.

UFZ - Helmholtz. Center for Invironmental Research.
A german site with distribution maps of the European species.

In German, a thorough resource to photo identification of European daytime butterflies and moths.

"This "project" has started as my desire to scan images of Finnish lepidoptera and make them available on the web. The original idea has evolved and is still evolving into different directions. From the lepidoptera I am expanding to other life forms, however the lepidoptera contains the most information. Other sections are mostly species lists."

Contains subspecies to many butterflies, though not often not including some that other resources mention. In general the concept of subspecies, forms aberrations, variations etc. seems to be less well-defined than in the birding world...

Focus on German species, and mostly larvae and species habitats. Photos of all stages but site doesn't handle identification issues.
In English or German but only scientific names are used.

Resource from The Natural History Museum listing all taxa of Lipidoptera.

Dutch portal about butterflies and dragonflies. Conservation, monitoring and short species accounts.

Spanish NGO working for the study and protection of butterflies in Spain. Also maintains what appears to be the official species list of the country.

"ZERYNTHIA es una asociación de ámbito estatal, sin ánimo de lucro, que se encarga del estudio, divulgación y conservación de las mariposas y los lugares donde habitan. Es además la entidad representante en España de la federación europea Butterfly Conservation Europe."

Podcast in Swedish about Swedish butterflies, the people and their environment.

Private site showing photos, host plants and flying periods for many of the Swedish species - both butterflies and moths. Also a competent list of host plants.

The Swedish Butterfly Monitoring Scheme is a new national monitoring programme coordinated by Lund University for the Swedish Environmental Protection Agency. The programme was initiated in 2010, and is a partnership between the Entomological Society of Sweden, the Swedish Environmental Protection Agency, Lund University, the Swedish University of Agricultural Sciences and the Swedish County Administration Boards.

The official Swedish organization covering entomology. Acting as an umbrella organization for 11 different niche organizations. Publishing the journals Entomologisk Tidskrift and Yrfän.

"Our aim is to provide an up-to-date reference resource to enable the professional and amateur entomologist to identify the extensive variety of BRITISH BUTTERFLY FORMS and ABERRATIONS that have occurred within our fauna."

British moth. and micromoths. Systematic and thorough photo guide to dissected specimens.

British NGO working for the benefit of the butterflies and environment on the British Isles.

British and Irish butterflies and moths. Photo collection including many aberrant forms. Under the National History Museum.

"Building a Community of Responsible Butterfly Enthusiasts in Britain & Ireland."

"Welcome to UKMoths, your online guide to the moths of Great Britain and Ireland. UKMoths has been providing identification help and information about Britain's moths for over 15 years."

A brief powerpoint presention explaining the idea with the convention.

Convention on the Conservation of European Wildlife and Natural Habitats.

European flora and fauna is regulated and protected by law at various levels, expressed through this Directive. Annexes II and IV are the two normally referred to when categorizing the level of protection.

Gull aficionado gone Dragonfly. A few photos from 2007-2009 from the two islands.

Author: Gunther Theischinger, 2009
A key to identify australian odonata. Including distribution maps.

"This page contains pictures and information about Dragonflies that we found in the Brisbane area, Queensland, Australia." Elaborated site about dragonflies from the Brisbane area, made by the Chew family - all before 2008 I think.

"Odonata of Bangladesh website provides a platform to the naturalists and ordinary citizens to contribute to the knowledge of the Bangladeshi Odonata fauna."

Maps and photo gallery of Cambodian species. Discontinued, but probably from around 2000-2020.

Photo gallery of Cambodian species from ?-2019.

Rev. biol. trop vol.48 n.1 San José Mar. 2000. Online version of species list of 1999 by Dennis Paulson et al.

Rev. biol. trop vol.58 suppl.4 San José Dec. 2010. Biology of odonata. Description. Good to learn Spanish terminology.

Survey project covering Danish dragonflies and damselflies.

Authors: N. Bell, E. Dylmer & K. Olsen - January 2014.
A short, and older, presentation of the status of this rare species in Denmark.

Information about Danish dragonflies and damselflies.

Authors: Lars Brøndum, Kent Olsen og Ole Fogh Nielsen - March-November 2015.
Key by drawings to the imagines of the Danish odonates (from page 38; the article also includes keys to the Danish Assassinflies and Harvestmen).

Author: Mogens Holmen † - March 2017
Photographic Powerpoint presentation of the Danish larvae (final instar I assume).

The Danish Redlist for dragonflies. Referring to both 2010 and 2019, being the latest versions.

Simple but good photo presentation of the European species.

Well-organized and systematic site mostly about European and Australian dragonflies. Many photos. Fons Peels is the man behind, though it doesn't say on the website.

Author: De Knijf et al. (2024)

Author: De Knijf et al. (2024)

A French personal site with good photos and information especially about French species, but also photos from several other countries on various continents.

"Die Gesellschaft deutschsprachiger Odonatologen e.V. (GdO) hat sich zum Ziel gesetzt, der Förderung des Wissens über Libellen und dem Schutz heimischer Libellen zu dienen. Sie will die Kontakte und den Erfahrungsaustausch zwischen Libellenkundlern ermöglichen und intensivieren. etc."

"LibellenWissen.de möchte Naturfreunden, Naturfotografen und insbesondere Makro-Fotografen die Bestimmung von Libellen erleichtern sowie einiges an Wissen rund um Libellen, eine der ältesten und gleichzeitig am stärksten bedrohten Insektengruppe der Erde, vermitteln."

Amateur site dedicated to species of Germany and Central Europe. Photos and general species accounts. [German]

"Seit den Anfängen sind neben an der Universität oder in der freien Wirtschaft tätigen Naturwissenschaftlern in gleichem Maße interessierte Hobby-Naturforscher, Naturfotografen und im Verbands-Naturschutz tätige Personen aller Altersstufen in der SGL aktiv."

Citizen Scitience portal.

"Welcome to the Odonata of India website, a peer-reviewed, internet-based and open resource on Indian Odonata".

Photos, distribution and ecology. In progress.

A project page under iNaturalist to discuss and register observations of cannibalism among odonates.

Author: Sandall, Pinkert & Jetz - May 2022. Journal of Biogeography: Original link

Many high quality photos of many species worldwide. Not easy to search for specific species.

"THE DRAGONFLY SOCIETY OF THE AMERICAS (DSA) ADVANCES THE DISCOVERY, CONSERVATION AND KNOWLEDGE OF ODONATA THROUGH OBSERVATION, COLLECTION, RESEARCH, PUBLICATION AND EDUCATION."

"Prime purpose of the IDF is the direct promotion of dragonfly research and dragonfly protection.
In order to achieve these goals, the IDF promotes research activities in theoretical and applied areas, provided they are of outstanding importance for odonatology and measures concerning biotope and species protection."

Presents a good list of free pdf files addressing new area species and other field related information.

Author: Spoorhty Raman, 2022-02-09

"Journal published for the International Odonatological Foundation, Societas Internationalis Odonatologica (S.I.O.)."

The official global dragonfly list maintained by the Odonata Central. Also data management and presentation of mainly American odonates.

"The Worldwide Dragonfly Association (WDA) is an international organization dedicated to research, conservation and public awareness of dragonflies and damselflies (Odonata), an ancient and beautiful order of insects with amazing behavior."

Older resource (2000-2003) with a country checklist, flight periods and general information about the local odonates.

"Società Italiana per lo Studio e la Conservazione delle Libellule ODV"

Italian Society for Dragonfly Studies.

Photo gallery of Malaysian species from 2022-2024.

Records of Mexican wildlife, managed by CONABIO. Presenting observations from various resources including iNaturalist. But also presents information from researchers that apparently is not found elsewhere.

The official foundation for the odonate diversity per state in Mexico. Maintained by Dennis Paulson and Enrique Gonzáles Soriano.

Actually a birding site but includes a photo page with local odonata species.

A compilation of species recorded by the author in Jalisco. With short id explanations. Material based on iNaturalist. Both in English and Spanish.

The Ducth Society for Dragonfly Studies.

Dutch portal about butterflies and dragonflies. Conservation, monitoring and short species accounts.

The personal dragonfly website of the Dutch dragonfly expert. It doesn't give much information in terms of the single species, but it is always interesting to follow a capacity and get a sense of in which directions science is moving.

Good photos and videos of the Dutch dragonflies. Also many interesting articles by the author on the subject.
“From my early childhood I am interested in nature. As a teenager I started to photograph subjects in nature. At first I started photographing birds, later mainly insects. In recent years I have started filming more and more”

A solid resource to the Polish species with photos, distribution and links to relevant Polish literature. All in Polish.

Translated: "This is a new version of the Vedi.manifo.com website, existing since 2012 under a changed title. This is a continuation of the presentation of photos and observations from our observations of dragonflies. The website is run by: Elżbieta and Krzysztof Lewandowski"

Photo gallery of Russian and Kazakh species from ?-2020.

Photo gallery of Singaporean species from 2009-2015.

Photo gallery of Singaporean species from 2013-2020.

A general portal to biodiversity in Slovenia. You can search for photos, but no overview of the odonates in the country.

South African resource showing many good photos [all small-sized] and identification clues in text. But the overall user experience is poor. Confusing content and slow-responsive with old-fashioned menus.

Private but up-to-date quality site on the dragonflies of South Africa. Includes lists and photos. Also the authors of the field guide: "Dragonflies and Damselflies of South Africa".

"A Visual Guide to the Damselflies and Dragonflies of South Africa"

"Nombres vernáculos (= comunes) de las libélulas en castellano."

"Fotografía y Biodiversidad (FyB) es una asociación sin animo de lucro cuyo fin primordial es fomentar la protección y el conocimiento de la biodiversidad, enmarcada dentro de lo que se denomina internacionalmente como ciencia ciudadana."

Not sure if this the general portal for people interested in Spanish Biodiversity. Observations are saved at observations.org. There seems to be very little, and incomplete, information about dragonflies, but at least one can get learn the terminology in Spanish.

A short educational intro to the dragonflies, presenting all the species found in the Canaries.

"Somos una empresa dedicada al ecoturismo, al turismo de naturaleza, al turismo slow, al senderismo no deportivo y a la interpretación medioambiental".

"Bienvenidos a la página web de la S.E.A. en la que se recogen, clasificados tanto por revistas como por áreas temáticas, más de 2.500 artículos, monografías, notas e informaciones entomológicas y aracnológicas publicadas en revistas y series impresas y electrónicas de la asociación, abarcando unas 20.000 páginas impresas del periodo 1991-2017.".

Private organization with focus on Swedish dragonflies and damselflies - conservation, education.

Blog, photos, id-issues 2010-2020.

But mainly about Turkey. Billboard-like information about special conditions and observations made in the region. Project stopped in 2009.

Older resource (2008-2014) with a country checklist and general information about odonates. Photos included but they don't load.

The British Dragonfly Society. NGO working to promote, study and conserve the dragonflies of Britain. Published the excellent Europe's Dragonflies in 2020 in the series WildGuides.

Uncurated photos of mainly N American species from various personal sites.

Close-up photos of many N American species. Good details of appendages in particular. But without any texts whatsoever the value of this site is limited to work as a reference when you are already on to something. Last updated in 2007.

Citizen Science. Maintaining the World Odonata List, with the in intention to be the official taxonomy used in the global community. Also including a public database holding observations mainly from N America, but with a worldwide scope.

Species accounts with photos, distribution maps and id pointers of the species seen in Arizona. Many photos from further south in the Americas, though.

Site with photos of the species found on the peninsula and good locality descriptions as well. High quality stuff and the author seems like a nice knowledgeable guy you would like to go oding with!

Species list, photos and phenology of the species seen in the state.

Photo gallery of Vietnamese species from 2011-2016. Doesn't seem to work on android phone.

Blog and photo gallery of Vietnamese species from 2013-2022.

Autumn festival focusing on both fauna and flora of the peninsula with conservation and education as the main goal.

First year 2013. Held in August in San Miguel de Allende. Workshops, trips and talks. Entrance fee. Link update in 2019: Site downgraded to a simple facebook profile, as have the activities it seems.

Festival taking place in january in San Blas. Locally managed with focus on migrating birds. The activities include daily trips and various activities with special focus on children.

Festival taking place in november. Among other activities bird marathon.

Online identification key to Swedish flora and fauna by SLU - Sveriges Landbruksuniversitet (the Swedish University of Agricultural Science).

Professional and very thorough work including all the Danish Mirid Bugs (Miridae).

The Danish Entomological Society under the university of Copenhagen.

British artist, naturalist and photographer with focus on many live forms but added here for his expertice on bees, hover flies and similar creatures. Check out his flickr account with spectacular photos and English names here (Also British dragonflies). Hoverflies directly

An identification guide to find all insect types in N America (Canada, USA and Mexico) by location or appearance.

Not that I approve of the collecting mentality, but adding this site as there are some competent comments on especially butterflies.

"The Entomological Society of Latvia (LEB in official abbreviature) unites entomologists, arachnologists and other invertebratologists from Latvian and the World since 1951. LEB is a discussion club for scientists and applied biologists, nature managers. It publishes scientific journals, first of all "Latvijas Entomologs", and distributes knowledge to wide society through mass media. Our members are active in science, nature conservation and are open to everybody. Welcome to the fascinating world of insects!"

The Norwegian Entomological Society.

"Norsk entomologisk forening har i dag ca. 700 medlemmer spredt over hele landet. Våre medlemmer omfatter både profesjonelle entomologer og amatører. NEF er underordnet SABIMA (Samarbeidsrådet for biologisk mangfold), som er en paraplyorganisasjon for de biologiske foreningene i Norge."

USA and Canada. A user-driven photo site to exchange knowledge about insects and spiders.

USA site to identify exotic/invasive species in the family Megachilidae. High-quality text and photos.

"The Biodiversity Heritage Library improves research methodology by collaboratively making biodiversity literature openly available to the world as part of a global biodiversity community."

"The BHL portal provides free access to hundreds of thousands of volumes, comprising over 60 million pages, from the 15th-21st centuries."

Ecobiósefera arranges trips to the national park El Triunfo

Fond aiming to conserve El Triunfo

Link error 2020-07-30.
Privat organisation with focus on protection of the local Sea Turtles. Breeding and education are fundamental activities. They also have focus on educational awareness of the birds in the area.

A unique square kilometer of thorn forest right in the middle of Colima City. Because of the rich flora and avifauna local forces are working on making it a park with a conservational and educational purpose.

A Center for Wildlife Conservation and Environmental Education.

Protected area west of Guadalajara City with limited access.

Website appears dead, Sep 2024. Lies south of Puerto Vallarta close to the village El Tuito. Many endemics species on the property. Minimum stay is 3 nights. However, also access to birders who just want to go there birding. Donations appreciated.

Locality south west of Puerto Vallarta. Various of the area's endemics can be seen here, and is a particular good spot to look for hummingbirds at the feeders. Good supplement to rancho Primavera in El Tuito. Entrance fee.

Nature park near San Pedro Garza García.

Highland reserve holding large biodiversity and remnants of original cloud forest.

Cellar of swallows. Natural hole with a free fall of 376 meters. Housing thousands of White-collared Swifts. Spectacular experience when they leave the hole in the morning and almost more impressive when they enter the hole in the afternoon.

Private conservation project in low dry thorn forest in Mazatlán. Public access but perhaps only with appointment.

Official site for the reserve.

Ecological camp with activities like bicycling, kayaking, mangrove trips and swimming. Beautiful lushful surroundings. Worth it both for the common tourist and the serious birder.

Published by the Audubon Society. High quality articles on various subjects of birding.

These two magazines are issued by the Neotropical bird club. Dealing with identification, logistics, observations and much more.

These two magazines are issued by the American Birding Association. Dealing with identification, logistics, observations and much more. Focus on North America.

Another effort to make a national portal to harbor all observations of flora and fauna in Denmark. I'm not sure why, but probably because of egos and conflicts with the owners of naturbasen.dk which used to be the main nature portal at a national level.

It's new, 2022, and time will tell whether it will really take over from naturbasen or not. People still use naturbasen at a large scale, but since they obviously have problems maintaining the technology, it is probably a question of time before arter.dk will be the new central to use.

Public resource run by Birdlife Denmark (DOF - Dansk Ornitologisk Forening).
The de facto place where people enter observations of birds in Denmark.
Everyone can get an account and it is free.

Public, and semi-official, portal where to report observations of flora and fauna in Denmark. This is the portal that people de facto use for all categories except for birds (here dofbasen.dk is the best resource). Supports photos but no other media types.

Everyone can get an account and it is free.

However, the functionality of the website is very basic, and not really up-to-date with simple user requirements such as being able to search through data, except for 'scrolling' per day until you get reach your target. And it is very slow. Often requests get lost and you have to start over by making a refresh, F5.

The British tool for registering wildlife observations.

The Finnish tool for observations of all species types. Both in Finnish and English.

Global observation community with focus on photos and a democratic! identification process at its core.

"Map of Life aims to support effective and global biodiversity education, monitoring, research, and decision-making by assembling and integrating a wide range of knowledge about species distributions and their dynamics over time."

Global observation platform (mostly Europe with Dutch origin) of all types of flora and fauna.
I use it mainly for dragonflies and butterflies.

e-bird for Mexico. Bird observations from the whole country.

Like iNaturalist where you can add photos and observations (and be ranked and all that jazz...). Useful to find species and distribution.

Counts of the raptor migration in Veracruz.

The main Norwegian portal to all observations of flora and fauna in Norway.

The main Swedish portal to all observations of flora and fauna in Sweden.

Dragonflies. Citizen Science. Observations mainly from N America, but adding data from all over the world is possible.

One of the two Birdlife-partners in Canada.

The other of the two Birdlife-partners in Canada.

The most important ngo organization dealing with protection of the worlds avifauna.

Species and habitat protection.

Focus on prevention and conservation of terrestrial bird species through out both American continents.

Working for conservation on both American continents.

Leader in compiling and presenting new information covering the area from Mexico to the southernmost South America.

Global organization working for protection of wild parrots and minimization of the illegal trade.

Bird trips for beginners around the the city of Aguascalientes.

A list of private bird clubs in all of Mexico prepared and maintained by CONABIO. USE THIS LIST TO FIND LOCAL MEXICAN CLUBS.

Birdlife partner in Mexico. Focus on general conservation of natural ressources.

Pronatura partner in northwestern part of country. Focus primarily on conservation.

Local organisation focusing on ecotourism and sustainable development in local communities such as El Triunfo.

Pronatura partner in Chiapas. Focus primarily on conservation and sustainable development.

Local birdclub in San Miguel de Allende. Arranging local birdtrips and speaks.

Pronatura partner in northeastern part of country. Focus primarily on conservation.

Focus primarily on conservation and sustainability in the caribian region in cooperation with universities.

Pronatura partner in Veracruz. Focus on conservation, education, birding tours and raptor monitoring in Cardel.

Pronatura partner in Yucatán. Focus primarily on conservation.

Private organisation working to protect wetlands and aquatic birds in North America, Canada, USA and Mexico.

A corner stone in the American birding world. Research, education and among other programs responsible for e-bird.

The other of the two big publically oriented organisations. Focus on active bird watching. Among others responsible for the magazine Birding.

Organization of professional ornithologists in USA.

Birdlife partner in USA. One of the two publically oriented organisations. Conservation is among the focus points. Responsible for the yearly Christmas Bird Count.

German. Incomplete and with emphasis on European species.

Slater Museum of Natural History. North American species.

Birdlife document treating the Mexican IBAs. 2020-07-30: Now a general entrance page where to search by country.

Complete collection of information about the species of the world. Membership required, 49 USD pr. year. 2020-07-30: Used to be birds of North American only by the global ambition is a fact, though extra-American species are still only treated superficially.

Initiative from Cornell lab. Covering descriptions of the species from Mexico and all the American continent south from there.

A brief compilation of sound examples of the few Danish species. Also videos and photos of nature in general.

"Connecting people around the world by synthesizing and sharing information about amphibians to enable research, education, and conservation".
Including sound recordings.

Nathan Pieplow and Andrew Spencer. Articles and sounds mostly about the birds in the Americas.

"La Fonoteca Zoológica es una colección científica de sonidos animales, que fue creada en 2002 por el Dr. Rafael Márquez, Investigador del CSIC para servir como ayuda en el estudio de la comunicación acústica de los animales".
Sound recording of various groups of animals.
In English and Spanish.

The Cornell media library and now repository of media files from ebird.

Big collection. Photos, videos and sounds from all over the world. LYNX edition.

Big collection of birdsongs from all over the world. Free access for everybody also to download files.

Photos of collected specimens and landscapes.

Small selection of birdsongs with spectrograms.

Articles related to North American bird sounds. Mostly Tyrant Flycatchers.

Many photos of species with relevance to Mexico. Brian Patterson.

Register of species with status for all official localities in Mexico (IBAs, Parks, states etc.).

Responsable for surveillance of species and biodiversity as well as keeping up with international agreements.

Presentation of IBA areas in Mexico.

Independent organisation under SEMARNAT. Administers protected natural areas and resources in a sustainable perspective.

Independent organisation under SEMARNAT. Responsable for control with violence of laws and rules.

Experiencing corruption and violation from police or other law inforcement personal, you can report it in full anonymity.

Maintain protection and restauration of natural resources in a sustainable perspective.

The official list of Danish bird names. Based on IOC. Also includes English and German names.

Listing of the different BIRD taxonomies in use today, and useful tool to compare species names between taxonomies. Also species lists for the different countries and continents.

Unified bird taxonomy based on leading authorities of today (ebird, IOC, Birdlife...). Supposed to be the official bird taxonomy reference from now on.

"The Catalogue of Life is an assembly of expert-based global species checklists with the aim to build a comprehensive catalogue of all known species of organisms on Earth. Continuous progress is made towards completion, but for now, it probably includes just over 80% of the world's known species. The Catalogue of Life estimates 2.3M extant species on the planet recognised by taxonomists at present time. This means that for many groups it continues to be deficient, and users may notice that many species are still missing from the Catalogue."

Official site for updates regarding the Clements taxonomy.

"The International Commission on Zoological Nomenclature (ICZN) acts as adviser and arbiter for the zoological community by generating and disseminating information on the correct use of the scientific names of animals. The ICZN is responsible for producing the International Code of Zoological Nomenclature - a set of rules for the naming of animals and the resolution of nomenclatural problems."

The International Ornithologist Union. The most popular taxonomic alternative to ebird/Clements. The most popular taxonomy in Europe.

Official fauna lists with general species data and state of abundance.

"Mammal Species of the World, 3rd edition (MSW3) is a database of mammalian taxonomy. It is hoped that this database on the World Wide Web can be used as a convenient on-line reference for identifying or verifying recognized scientific names and for taxonomic research. The names are organized in a hierarchy that includes Order, Suborder, Family, Subfamily, Genus, Species and Subspecies."

The American Ornithologist Union. NACC is the committee maintaining the official list of species registered in the North American area, including handling taxonomic issues.

The American Ornithologist Union. SACC is the committee maintaining the official list of species registered in the South American area, and also handles taxonomic issues. Click on Proposal Roster to see earlier decisions.

Revised list from Dec 2015 with up-to-date species and Mexican names. De facto reference from now on. Conabio is responsible. Direct often doesn't work, http://www.biodiversidad.gob.mx/especies/scripts_aves/docs/checklist_aves_mexico_2015x.pdf, so download is from my site.

Revised list from 2017 with up-to-date species and Mexican names. Conabio is responsible. Direct link often doesn't work, http://www.biodiversidad.gob.mx/especies/scripts_aves/docs/lista_actualizada_aos_2017.pdf, so download is from my site.

Seo, Spanish Birdlife, has compiled a set of pdfs with Spanish names to all the species in the world.

A tool to calculate angles in photos.

Private initiative. Calculates distances, time and gasoline consumption between to points in Mexico.

SCT - The Secretary of communication and transport. Public site for calculations of distances, time, gas consumption. Especially useful because it lists the prices for passing the toll booths on the highways. Only in Spanish.

Traveling magazine covering all of Mexico. Good source of inspiration.

Experiencing problems interacting with other public authorities, you can report it here. Only in Spanish.

Official general site with information for tourists in Mexico. English and Spanish plus more.

Exhibitions showing the majority of the Mexican bird species.

Official Danish Weather Forecasts.

General weather page, many languages

Information about hurricanes in both the Caribbean and eastern Pacific Ocean. In English.

Official Mexican weather. In Spanish.

The weather in the Mexican mountaneous region per locality.

Official Swedish Weather Forecasts.