The semipalmated (half-webbed) bases of toes on the foot of a Willet. “... basal webs generally run out to the end of the first, or along part of the second, phalanx of the toes; usually farther between the outer and middle that between the middle and inner toes.” Elliot Coues, 1884
Elliot Coues Key to North American Birds (Boston, MA: Estes and Lauriat, 1884)
1908×2400, 905.1 KiB
814×1024, 128.2 KiB
508×640, 66.3 KiB
254×320, 23.9 KiB