English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/50116
logo share SHARE   Add this article to your Mendeley library MendeleyBASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:


A new subspecies of Gurney’s Hawk Buteo poecilochrous

AuthorsCabot, José ; Vries, Tjitte de
Issue Date2009
PublisherWitherby & Co
CitationBull. B.O.C. , 129(3):149-164 (2009)
AbstractA new subspecies of Gurney’s Hawk Buteo poecilochrous is recognised for populations of the species from northern Peru and western Bolivia to north- west Argentina and northern Chile. Specimen analysis reveals that they differ in size and plumage from northernmost populations, in south Colombia to south Ecuador. The new subspecies is slightly smaller in body measurements and in definitive plumage has the grey-feathered areas darker and more slate-coloured than the nominate subspecies. Furthermore, pale- and dark-morph females possess a more extensive dorsal patch; the pale morph has white central underparts and finely barred or vermiculated sides, whilst in juveniles, in general, these areas are warm brown with rusty or cinnamon markings. In the nominate form, by contrast, the underparts are usually darker brown with creamy or whitish markings
Publisher version (URL)http://www.boc-online.org/bulletin-downloads.htm
Appears in Collections:(EBD) Artículos
Files in This Item:
File Description SizeFormat 
2009 subespecie.pdf862,03 kBAdobe PDFThumbnail
Show full item record
Review this work

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.