Greater v. Lesser Yellowlegs

Bill size and shape (the bill is thicker and slightly upturned on Greater) are definitely the easiest features. Greater is slightly stockier and shorter-winged, but that difference can be subtle and easily obscured in photos. The two differ in the extent of dark barring onto the flanks and lower chest in breeding plumage, but most birds photographed are well south of their breeding range and often still molting, which can make that less reliable.

Publicado el mayo 10, 2022 09:13 TARDE por zugadoo