Chihuahuan Meadowlark
Sturnella lilianae
Handsome grassland bird found from the southwestern US to central Mexico. It was long considered a subspecies of the widespread Eastern Meadowlark, but recent research has shown that it should be treated as a distinct species. In the limited area where their ranges meet, note that Chihuahuan Meadowlark has paler flanks and more white in the tail. Separating Chihuahuan Meadowlark and Western Meadowlark is a common ID challenge as their ranges mostly overlap. Voice is often the safest bet. Chihuahuan Meadowlark has a simpler, less gurgled song and its typical call note is a sharp “zit” (not a low “chuck”). Silent birds can be identified if the tail is seen well. Chihuahuan Meadowlark’s outer four tail feathers are almost completely white, whereas the white in Western Meadowlark’s tail is mostly restricted to the outer three feathers. Chihuahuan Meadowlark’s cheek also tends to be paler, though this is not always a reliable feature. Prefers tall, undisturbed grassland areas, often scattered with oak trees. Feeds on the ground where it usually stays well hidden, and sometimes sits on exposed perches, especially when singing.
分类信息
The Chihuahuan meadowlark was formally described in 1930 by the American ornithologist Harry C. Oberholser as a subspecies of the eastern meadowlark based on a holotype that had been collected in the Huachuca Mountains of Arizona. Oberholser proposed the trinomial name Sturnella magna lilianae. The epithet lilianae was chosen to honor Lilian Hanna Baldwin (wife of ornithologist Samuel Prentiss Baldwin), as she had presented the Cleveland Museum of Natural History with the collection of birds that included the type of the new subspecies. It is now treated as a separate species based on the significant morphological, vocal and genomic differences between the Chihuahuan meadowlark and the other subspecies of the eastern meadowlark.<p>Two subspecies are recognised:
- 学名
- Sturnella lilianae
- 命名信息
- Oberholser, 1930
- 目
- Passeriformes
- 科
- Icteridae
- 属
- Sturnella
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