Hawfinch Beak Small 320×185 Medium 640×369 Large 1024×591 Download Tiff Original 2400×1385 | (3.2 MB) Description Beak of Hawfinch. Keywords anatomy, Aves, beak, bill, bird, birds Galleries Bird Anatomy Source: H. Alleyne Nicholson, An Introductory Text-book of Zoology(Edinburgh:William Blackwood and Sons, 1871) 152 Courtesy the private collection of Roy Winkelman
