Bird photos - Mexico - Jesper Bay Jacobsen

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Brown Pelican (Pelecanus occidentalis) ebird/Clements (2019)
	74 (1 photos) Brown Pelican (Pelecanus occidentalis occidentalis) Pelicans (Pelecanidae) Playa del Carmen, Quintana Roo (Roo), Mexico 2009-04-26 Adult in breeding plumage standing.
	75 (1 photos) Brown Pelican (Pelecanus occidentalis occidentalis) Pelicans (Pelecanidae) Playa del Carmen, Quintana Roo (Roo), Mexico 2009-04-26 Adult in breeding plumage plunging.
	76 (1 photos) Brown Pelican (Pelecanus occidentalis occidentalis) Pelicans (Pelecanidae) Playa del Carmen, Quintana Roo (Roo), Mexico 2009-04-26 Adult in breeding plumage standing.
	2638 (1 photos) Brown Pelican (Pelecanus occidentalis carolinensis?) Pelicans (Pelecanidae) Puerto de Manzanillo, Colima (Col), Mexico 2013-01-12 Adult in breeding plumage with the brown back to the neck. The completely dark gular pouch and probably also the limited red on the bill are indications that this bird might be of the Atlantic subspecies, carolinensis, rather than the one normally seen along this part of the Pacific coast, californicus.
	2639 (2 photos) Brown Pelican (Pelecanus occidentalis carolinensis?) Pelicans (Pelecanidae) Peninsula Campos - Manzanillo, Colima (Col), Mexico 2013-01-29 Adult in breeding plumage with the brown back to the neck. The completely dark gular pouch and probably also the limited red on the bill are indications that this bird might be of the Atlantic subspecies, carolinensis, rather than the one normally seen along this part of the Pacific coast, californicus.
	2640 (1 photos) Brown Pelican (Pelecanus occidentalis carolinensis?) Pelicans (Pelecanidae) Peninsula Campos - Manzanillo, Colima (Col), Mexico 2013-01-29 Adult in breeding plumage with the brown back to the neck. The completely dark gular pouch and probably also the limited red on the bill are indications that this bird might be of the Atlantic subspecies, carolinensis, rather than the one normally seen along this part of the Pacific coast, californicus.
	2641 (1 photos) Brown Pelican (Pelecanus occidentalis californicus?) Pelicans (Pelecanidae) Puerto de Manzanillo, Colima (Col), Mexico 2013-08-02 Adult bird still in alternate plumage, but perhaps some signs of transition. Adults of this subspecies should have red proximally on the gular pouch, which is not the case here, but compared with 2638-40, which I suspect could be Atlantic birds, this bird has much more red on the bill, which I think might fit a californicus better. So perhaps the later time of the year, compared to the other photos, is the reason why the gular pouch hasn't got the red basis anymore..?
	1123 (2 photos) Brown Pelican (Pelecanus occidentalis occidentalis) Pelicans (Pelecanidae) Isla de Cozumel, Quintana Roo (Roo), Mexico 2013-11-26 Adult in basic plumage without chestnut on head. The gular pouch is used both as fishing device and heat regulator. Yucatán 2013. Yucatan 2013
	2281 (1 photos) Brown Pelican (Pelecanus occidentalis ?) Pelicans (Pelecanidae) Presa La Vega, west of Gdl, Jalisco (Jal), Mexico 2016-05-14 Adult. Thought this one was my first at la Vega, but apparently I had one at my first visit in June 2013 as well, but still a good record. Notice the size difference compared to the white pelicans.
	2642 (3 photos) Brown Pelican (Pelecanus occidentalis carolinensis?) Pelicans (Pelecanidae) Tehuamixtle, Cabo Corrientes, Jalisco (Jal), Mexico 2018-02-17 Adult in breeding plumage with the brown back to the neck. The completely dark gular pouch and probably also the limited red on the bill are indications that this bird might be of the Atlantic subspecies, carolinensis, rather than the one normally seen along this part of the Pacific coast, californicus.
	2706 (2 photos) Brown Pelican (Pelecanus occidentalis atlanticus?) Pelicans (Pelecanidae) Huatulco, Oaxaca (Oax), Mexico 2018-07-14 Took the left bird for an adult in the field, but here it is obvious that it is more likely to be a subadult, with juvenile type bill and still dark patches on the head, despite the fact that it has the adult type dark back side to the neck. So, knowing that it is not an adult bird, I better not conclude 100% that they belong to the Atlantic subspecies, atlanticus, even though there is absolutely no indication of anything bright or reddish on the throat pouch. And furthermore they both seem rather small and compact, which fits Atlantic birds better than Pacific or Californian, californicus. The Atlantic birds are not uncommon on the Pacific coast. They are known to breed in Honduras on this side, and they can also easily cross the isthmus between Oaxaca and Chiapas.
	2721 (1 photos) Brown Pelican (Pelecanus occidentalis carolinensis?) Pelicans (Pelecanidae) El Tortugario - Estero Palo Verde, Cuyutlán, Colima (Col), Mexico 2018-07-29 Subadult bird is what my conclusion says, with a combination of an adult hind neck and a juvenile head. There were some 20 birds present this day, and most were juveniles, and all looked to be of the Atlantic type concurring with other observations of the species from this area.
	2781 (2 photos) Brown Pelican (Pelecanus occidentalis ?) Pelicans (Pelecanidae) Peninsula Campos - Manzanillo, Colima (Col), Mexico 2018-10-14 Young bird.
	2782 (5 photos) Brown Pelican (Pelecanus occidentalis ?) Pelicans (Pelecanidae) Peninsula Campos - Manzanillo, Colima (Col), Mexico 2018-10-14 Young birds. Not possible to say of which subspecies.
	2783 (4 photos) Brown Pelican (Pelecanus occidentalis californicus?) Pelicans (Pelecanidae) Peninsula Campos - Manzanillo, Colima (Col), Mexico 2018-10-14 Adult in basic plumage. Does the strong red bill tip mean that this bird is of the Californian subspecies? 2641 is very similar. But, saw a clear californicus today with red pouch, so perhaps they must show that character now in October, why this one and 2641, after all are carolinensis.
	2784 (2 photos) Brown Pelican (Pelecanus occidentalis ?) Pelicans (Pelecanidae) Peninsula Campos - Manzanillo, Colima (Col), Mexico 2018-10-14 Young bird. Much red around bill tip already.
	2785 (3 photos) Brown Pelican (Pelecanus occidentalis ?) Pelicans (Pelecanidae) Peninsula Campos - Manzanillo, Colima (Col), Mexico 2018-10-14 Young bird. Notice the much darker gular pouch than 2784 from same spot.
	2786 (3 photos) Brown Pelican (Pelecanus occidentalis californicus?) Pelicans (Pelecanidae) Peninsula Campos - Manzanillo, Colima (Col), Mexico 2018-10-14 Adult type in basic plumage. Other than 2783, same time and spot. Seems more diffuse in its expression, and notice the brighter parts of the gular pouch, perhaps indicating a californicus?
	3304 (1 photos) Brown Pelican (Pelecanus occidentalis ?) Pelicans (Pelecanidae) Mazatlán, Sinaloa, Mexico 2020-01-04 Juvenile. Likely of the subspecies californicus due to the location and presence of adults of this subspecies.
	3305 (2 photos) Brown Pelican (Pelecanus occidentalis californicus) Pelicans (Pelecanidae) Mazatlán, Sinaloa, Mexico 2020-01-04 Adult bird in breeding plumage, with the brown neck and darkish bill. This subspecies due to the red throat pouch. Compare with 3306 from same date and location.
	3306 (1 photos) Brown Pelican (Pelecanus occidentalis californicus) Pelicans (Pelecanidae) Mazatlán, Sinaloa, Mexico 2020-01-04 Adult in basic plumage. Both neck and bill darkens when entering the breeding plumage. Compare with 3305 from same date and location.