Geographical variation in the southern distributional range of the Rufous-tailed Hummingbird, Amazilia tzacatl De la Llave, 1832: a new subspecies from Narino, southwestern Colombia

Citation
Aa. Weller et Kl. Schuchmann, Geographical variation in the southern distributional range of the Rufous-tailed Hummingbird, Amazilia tzacatl De la Llave, 1832: a new subspecies from Narino, southwestern Colombia, J ORNITHOL, 140(4), 1999, pp. 457-466
Citations number
39
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Animal Sciences
Journal title
JOURNAL FUR ORNITHOLOGIE
ISSN journal
0021-8375 → ACNP
Volume
140
Issue
4
Year of publication
1999
Pages
457 - 466
Database
ISI
SICI code
0021-8375(199910)140:4<457:GVITSD>2.0.ZU;2-G
Abstract
The Rufous-tailed Hummingbird (Amazilia tzacatl De la Llave, 1832), a wides pread inhabitant of Central America and NW South America, currently compris es two subspecies (A. t. tzacatl and A. t. jucunda). Another taxon of the s pecies complex is A. t. handleyi (Wetmore, 1963), initially described as an allospecies but here regarded only as a subspecies of A. tzacatl. Based on diverging morphological features, the amount of geographical variation of A. tzacatl in its South American range suggests the distinction of further populations. As a taxonomical consequence, we recognize the validity of A. t. fuscicaudata (Fraser, 1840), and describe a new subspecies, A. t. brehmi subspec. nov., from Narino, Colombia.