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RMKD786A–Variable hawk Buteo polyosoma in flight over grassland Darwin Falkland Islands British Overseas Territory November 2016
RMANWMRM–Red backed Hawk (Buteo polyosoma) adult calling from the cliff Saunders Island West Falkland South Atlantic Ocean
RMGG6EG0–Red backed hawk (Buteo Polyosoma) with her chick on the nest, Peninsula Valdes, Patagonia, Argentina, South America
RMANWMPJ–Red-backed Hawk (Buteo polyosoma) sitting on the nest Saunders Island West Falkland South Atlantic Ocean December
RM2BNEFWB–Variable hawk (Buteo polyosoma) perched on part of a fence, Darwin, East Falkland, Falkland Islands November
RMANWMRR–Red backed Hawk (Buteo polyosoma) adult looking down from the top of cliff Saunders Island West Falkland South Atlantic Ocean
RMB0GN8N–Birdwatcher looking at a Dark Phase Hawk or Variable Hawk - Buteo polyosoma - on Pebble Island in Falkland Islands
RM2A9BE3J–A Variable Hawk (Buteo polyosoma) on a gate on Carcass Island in the Falkland Islands (Islas Malvinas).
RMBC729C–Red-backed Buzzard, Buteo polyosoma - feeding on King Comorant (Phalacrocorax atriceps albiventer)
RMW7WYCC–Variable hawk (Geranoaetus polyosoma) on nest, Valdes Peninsula, Chubut, Patagonia, Argentina.
RF2J1TTGX–Variable hawk, Geranoaetus polyosoma, catch hare in the nature habitat, Antisana NP in Ecuador. Bird of prey feeding behaviour. Birdwatching in South
RMBWM67P–Argentina South America Red-backed Hawk Buteo polyosoma Bird of Prey Cardon Cactus Seelantas Valles Calchaquies
![hand coloured sketch of Variable Hawk (Buteo polyosoma polyosoma [Here as Buteo tricolor]) Top: Male bottom: Female From the book 'Voyage dans l'Amérique Méridionale' [Journey to South America: (Brazil, the eastern republic of Uruguay, the Argentine Republic, Patagonia, the republic of Chile, the republic of Bolivia, the republic of Peru), executed during the years 1826 - 1833] 4th volume Part 3 By: Orbigny, Alcide Dessalines d', d'Orbigny, 1802-1857; Montagne, Jean François Camille, 1784-1866; Martius, Karl Friedrich Philipp von, 1794-1868 Published Paris :Chez Pitois-Levrault et c.e ... ;18 Stock Photo](https://c8.alamy.com/comp/2BN2BA4/hand-coloured-sketch-of-variable-hawk-buteo-polyosoma-polyosoma-here-as-buteo-tricolor-top-male-bottom-female-from-the-book-voyage-dans-lamrique-mridionale-journey-to-south-america-brazil-the-eastern-republic-of-uruguay-the-argentine-republic-patagonia-the-republic-of-chile-the-republic-of-bolivia-the-republic-of-peru-executed-during-the-years-1826-1833-4th-volume-part-3-by-orbigny-alcide-dessalines-d-dorbigny-1802-1857-montagne-jean-francois-camille-1784-1866-martius-karl-friedrich-philipp-von-1794-1868-published-paris-chez-pitois-levrault-et-ce-18-2BN2BA4.jpg "hand coloured sketch of Variable Hawk (Buteo polyosoma polyosoma [Here as Buteo tricolor]) Top: Male bottom: Female From the book 'Voyage dans l'Amérique Méridionale' [Journey to South America: (Brazil, the eastern republic of Uruguay, the Argentine Republic, Patagonia, the republic of Chile, the republic of Bolivia, the republic of Peru), executed during the years 1826 - 1833] 4th volume Part 3 By: Orbigny, Alcide Dessalines d', d'Orbigny, 1802-1857; Montagne, Jean François Camille, 1784-1866; Martius, Karl Friedrich Philipp von, 1794-1868 Published Paris :Chez Pitois-Levrault et c.e ... ;18 Stock Photo")
RF2BN2BA4–hand coloured sketch of Variable Hawk (Buteo polyosoma polyosoma [Here as Buteo tricolor]) Top: Male bottom: Female From the book 'Voyage dans l'Amérique Méridionale' [Journey to South America: (Brazil, the eastern republic of Uruguay, the Argentine Republic, Patagonia, the republic of Chile, the republic of Bolivia, the republic of Peru), executed during the years 1826 - 1833] 4th volume Part 3 By: Orbigny, Alcide Dessalines d', d'Orbigny, 1802-1857; Montagne, Jean François Camille, 1784-1866; Martius, Karl Friedrich Philipp von, 1794-1868 Published Paris :Chez Pitois-Levrault et c.e ... ;18
RM2AE3F7C–Falkland Variable Hawk in flight (Bunto Polyosoma) on Pebble Island in the Falkland Islands (Islas Malvinas).
RF2J1DTRJ–Variable hawk, Geranoaetus polyosoma, catch hare in the nature habitat, Antisana NP in Ecuador. Bird of prey feeding behaviour. Birdwatching in South
RF2DACEKT–Red-backed Hawk, Variable Hawk (Buteo polyosoma) Juvenile Peninsula Valdes – Chubut-Patagonia -Argentina
RM2AE3GJR–Two Falkland Variable Hawks (Bunto Polyosoma) on Pebble Island in the Falkland Islands (Islas Malvinas).
RMW7WY9K–Variable hawk (Geranoaetus polyosoma) juvenile, Valdes Peninsula, Chubut, Patagonia, Argentina.
RMJR18XR–Variable hawk (Geranoaetus polyosoma), female perched on Elephant seal colony sign, Punta Norte, Peninsula Valdes, Argentina
RMRH14P0–. Bulletin. Natural history; Natuurlijke historie. ? 4. 4 Melierax metabates Accipiter melanoleucus Kaupifaico monogrammicus Buteogallus anthracinus Heterospiiias meridionalis Parabuteo unicinctus Buteo rufofuscus Buteo polyosoma Buteo lineatus Buteo swainsoni Buteo jamaicensis Buteo buteo Aquila rapax Aquila chrysaetos Aquila audax Hieraeetus pennatus FIG. 14. Starch gel electrophoretic patterns of the Accipitridae (part).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustratio
RMW7WY9J–Variable hawk (Geranoaetus polyosoma) juvenile, Valdes Peninsula, Chubut, Patagonia, Argentina.
RMKD7869–Variable hawk Buteo polyosoma on grassland Darwin Falkland Islands British Overseas Territory November 2016
RMRGHME1–. Bulletin of the British Ornithologists Club. Jose Cabot & Tjitte de Vries 198 Bull. B.O.C. 2003 123(3) Buteo polyosoma (f A? Buteo poecilochrous A q / / /' / . Figure 4. Distribution of wing length (mm) in 118 specimens of B. polyosoma and B. poecilochrous. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. British Ornithologists Club. Oxford : Clarendon Press
RMP4X4Y0–Woman with Red-backed Hawk (Buteo polyosoma). Village of Yanque. Arequipa Departament. Peru.
RMKD786B–Variable hawk Buteo polyosoma in flight off Darwin Falkland Islands British Overseas Territory November 2016
RMRGKDMT–. Bulletin of the British Ornithologists' Club. Birds. Figure 1. Flight silhouettes of Buteo polyosoma (a) and B. poecilochrous (b), based on the following measurements (Table 1): 1, total length; 2, wing-span; 3, forearm length; 4, wing length; 5, innermost secondary length; 6, outermost secondary length. individual in a locality are noted. In the Andean region records are allo- cated in three life zones. (1) Cordillera: slopes and valleys on the crest of the eastern Andean chain to perpetually snow-covered mountain-tops, above 4500 m. (2) Puna: rolling hills, groups of hills and plains on th
