Zygodactyle Foot of a Woodpecker

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“Fig. 45.- Zygodactyle foot of a woodpecker, Hylotomus pileatus. The zygodactyle or yoke-toed modification has been sufficiently noted in (fig. 45). It was formerly made much of, as a scansorial or climbing type of foot, and an absurd “order” of birds has been called Scansores.” Elliot Coues, 1884


Bird Anatomy


Elliot Coues Key to North American Birds (Boston, MA: Estes and Lauriat, 1884)


TIFF (full resolution)

2400×1147, 577.2 KiB

Large GIF

1024×489, 90.5 KiB

Medium GIF

640×305, 42.8 KiB

Small GIF

320×152, 12.9 KiB