Gyrfalcon (Falco rusticolus). Portrait. Showing ability to see by stereoscopic vision; both eyes able to see and focus in front.

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Gyrfalcon (Falco rusticolis). Head showing position of eyes allowing binocular vision; cere, nostrils, with nasal conchae which deflect air in flight, , and bill from above.

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Size: 3744px × 5616px
Photo credit: © Joe Blossom / Alamy / Afripics
License: Licensed
Model Released: No

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