Bird study: Falcon (Falco biarmicus) on a tree branch with a red speckled egg at the bottom left, with scale in Rhineland sizes., Falco biarmicus ? (Lanner falcon), draughtsman: Robert Jacob Gordon, Oct-1777 - Mar-1786, paper, pen, brush, h 660 mm × w 480 mm, h 188 mm × w 303 mm, h 175 mm × w 294 mm

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Size: 4000px × 2567px
Location:
Photo credit: © Penta Springs / Alamy / Afripics
License: Licensed
Model Released: No

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