Semipalmated Sandpiper
(Calidris pusilla) Sandpipers and Allies (Scolopacidae)
Tyknæbbet Dværgryle Playero Semipalmeado
350 (1 photos) 2009-04-29 Las Coloradas, Yucatán (Yuc), Mexico
Transition to alternate plumage.
335 (1 photos) 2009-08-23 Presa La Colorada, El Llano, Aguascalientes (Agu), Mexico
Juvenile. The short thick bill excludes Western Sandpiper (Calidris mauri), but also the brown-striped crown, the brownish ear coverts as well as a general cool browish expression indicates SS. Juvenile with the bright feather edges on shoulder and coverts and a uniform pattern. First record for Ags.