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Species with split potential
A compilation of species from the Mexican list with split potential (a work in progress).
Since the ebird/Clements taxonomy is largely based on the work of the AOS, the American Ornithological Society, relevant split potentials will mainly be based on the recommendations made by the two committees, NACC and SACC, that maintain the species lists and handle taxonomic issues for the American continents.
However, the list maintained by IOC, a committee under the International Ornithologist Union, often is quicker at implementing new splits that later will be accepted by most other leading taxonomies, including ebird/Clements, why I find it relevant to include these splits, relevant to Mexico, in this compilation as well.
Also included in the list are the relevant split proposals under NACC and SACC that have already been rejected, providing a historical perspective on the matter.
Since the ebird/Clements taxonomy is largely based on the work of the AOS, the American Ornithological Society, relevant split potentials will mainly be based on the recommendations made by the two committees, NACC and SACC, that maintain the species lists and handle taxonomic issues for the American continents.
However, the list maintained by IOC, a committee under the International Ornithologist Union, often is quicker at implementing new splits that later will be accepted by most other leading taxonomies, including ebird/Clements, why I find it relevant to include these splits, relevant to Mexico, in this compilation as well.
Also included in the list are the relevant split proposals under NACC and SACC that have already been rejected, providing a historical perspective on the matter.
| Show all subspecies Hide all subspecies Split by IOC Pending decisions Rejected cases |
| Shearwaters and Petrels (Procellariidae) |
|
Northern Fulmar (Fulmarus glacialis) Subspecies Rodgersii suggested split off as Pacific Fulmar. NACC 2019-A-1. PENDING. |
| Herons, Egrets and Bitterns (Ardeidae) |
|
Cattle Egret (Bubulcus ibis) Split by IOC. Mexican birds now Western Cattle Egret. |
| Hawks, Eagles and Kites (Accipitridae) |
|
Red-tailed Hawk (Buteo jamaicensis) Subspecies harlani (Harlan's) is suggested split off as Harlan's Hawk. NACC 2019-A-2. PENDING. |
| Barn-Owls (Tytonidae) |
|
Barn Owl (Tyto alba) Split by IOC. Mexican birds now American Barn Owl. |
| Owls (Strigidae) |
|
Northern Pygmy-Owl (Glaucidium gnoma) Split by IOC. Cobanense as Guatemalean Pygmy Owl. Hoskinsii as Baja Pygmy Owl. |
| Trogons (Trogonidae) |
|
Resplendent Quetzal (Pharomachrus mocinno) The two subspecies have been suggested split into two separate species. NACC 2019-A-11. PENDING. |
| Woodpeckers (Picidae) |
|
Northern Flicker (Colaptes auratus) Mexicanoides is suggested split off as Mesoamerican Flicker. NACC 2017-C-4. FAILED. |
| Vireos, Shrike-Babblers and Erpornis (Vireonidae) |
|
Bell's Vireo (Vireo bellii) Arizonae and pusilla suggested split off as Least Vireo. NACC 2017-C-14. FAILED. |
| Treecreepers (Certhiidae) |
|
Brown Creeper (Certhia americana) Southern subspecies albescens, alticola, pernigra and extima are suggested split off as Brown Creeper (Neotropical or Mesoamerican Creeper alternatively). NACC 2017-C-2. FAILED. |
| Gnatcatchers (Polioptilidae) |
|
Long-billed Gnatwren (Ramphocaenus melanurus) Rufiventris group might be split off as Northern Gnatwren. SACC 790B. PENDING. |
| Mockingbirds and Thrashers (Mimidae) |
|
LeConte's Thrasher (Toxostoma lecontei) arenicola (Vizcaino) suggested split off as Viscaino Thrasher. NACC 2018-18-C. FAILED. |
| Thrushes and Allies (Turdidae) |
|
Rufous-backed Robin (Turdus rufopalliatus) Graysoni suggested split off as Grayson's Robin. NACC 2017-B-3. FAILED. |
| New World Sparrows (Passerellidae) |
|
White-eared Ground-Sparrow (Melozone leucotis) Subspecies occipitalis suggested split off as Gray-crowned Ground-Sparrow. NACC 2018-C-7. FAILED. |
| Troupials and Allies (Icteridae) |
|
Eastern Meadowlark (Sturnella magna) Group Lilian's suggested split off as Lilian's Meadowlark. NACC 2016-C-2. FAILED. |
| New World Warblers (Parulidae) |
|
Nashville Warbler (Leiothlypis ruficapilla) Suggested split into two species. NACC 2017-C-5.FAILED. |