figure, drawing, illustration of Variable Hawk (Geranoaetus polyosoma) Formerly placed in Buteo and thought, mistakenly, to be close to Buteo galapagoensis. Red-backed Hawk (Geranoaetus polyosoma) [version 1] Avibase taxonomic concepts v. 01 (August ): Red-backed Hawk (Buteo polyosoma) [version 1]. Red-backed Hawk (Buteo polyosoma) English Wikipedia has an article on: Proper noun. Buteo polyosoma m. A taxonomic species within the family.
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Female in the Falkland Islands.
Buteo polyosoma (Red-backed Hawk) | JuzaPhoto
Avibase checklists Search Avibase search Browse by families Contribute There are a few ways by which you can help the development of this page, such as joining the Flickr group for photos or providing translations of the site in addition languages. The variable hawk Geranoaetus polyosoma is a polymorphic species of bird of prey in the family Accipitridae. Bird checklists – taxonomy – distribution – maps – links. It is widespread and often common in open habitats in western and southern South America, including the Falkland Islands.
Adults of all have a white tail with a contrasting black subterminal band and grey wings barred dark in flight from polyosomq, the remiges appear whitish with fine barring and a broad black tip.
Red-backed Hawk (Subspecies Buteo polyosoma polyosoma) ·
Each checklist can be viewed with photos shared by the birding community, and also printed as PDF checklists for field use. Re-split Buteo poecilochrous from B. Lolyosoma Variable Spanish Paraguay: Size is also variable in this confusing species.
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They build oplyosoma stick nests on any elevated structure available, and sometimes breed cooperatively. Females usually have a reddish-brown back, which males usually lack, although at least some males also have this. From Wikipedia, the free encyclopedia. It occurs throughout the Andes and in the temperate regions of southern South America.
Amerikaanse Roodrugbuizerd | Buteo Polyosoma | Variable hawk
To register to myAvibase click here. Other related concepts Buteo swainsoni x Geranoaetus polyosoma hybrid. Earthwormsweevilsorthopterans and other invertebrates are often taken. Buteo poecilochrous GurneyButeo polyosoma. Related taxa Other related concepts Buteo swainsoni x Geranoaetus polyosoma hybrid Other polyosoms Bulgarian: Contribute to Avibase Acknowledgements Flickr group Media stats Flickr group polyosmoa Media wanted Translate Avibase is also available in the following languages: Rufous crab hawk Common black hawk Cuban black hawk Great black hawk Savanna hawk.
Buteo polyosoma, Buteo polyosoma Red-backedButeo polyosoma polyosoma, Falco polyosoma, Geranoaetus polyosoma, Geranoaetus polyosoma Red-backed Lithuanian: Show Details Hide Details.
Variable Hawk Geranoaetus polyosoma. Public comments No comments yet Only members are able to post public comments. There are more than 12, regional checklists in Avibase, offered in 9 different taxonomies, including synonyms more than languages.
Translate Avibase is also available in the following languages: The larger-bodied, high-elevation hawks take longer to incubate and much longer to fledge than lower elevation hawks. Variable Hawks occupy open habitats at all elevations, where they prey on mammals and other small animals spotted from the air. Merge Buteo poecilochrous into B. Race exsul may be approaching species status, and recently treated as species on grounds of long isolation and lack of sexual dimorphism Rbut very low genetic divergence R argues against such treatment.
White-browed hawk White-necked hawk Black-faced hawk Plumbeous hawk Barred hawk Slate-colored hawk Semiplumbeous hawk. All populations of Variable Hawk are patterned in some combination of white, gray, and chestnut. There are a few ways by which you can help the development of this page, such as joining the Flickr group for photos or providing translations of the site in addition languages. Views Read Edit View history. Descriptive notes 45—62 cm; — g; wingspan — cm.