Winter plumage. The rather dark plumage and the dark yellowgreen legs distinguish this species from the other two peeps Western Sandpiper (Calidris mauri) and Semipalmated Sandpiper (Calidris pusilla).
Winter plumage. The bird to the left shows a bill length and form which at first look remind of the Western Sandpiper (Calidris mauri).
208 (1 photos) 2009-04-28 Las Salinas, Las Coloradas, Yucatán (Yuc), Mexico
Breeding plumage.
209 (1 photos) 2009-04-29 Las Salinas, Las Coloradas, Yucatán (Yuc), Mexico
Breeding plumage. Darker appearance than the bird on picture 208.
205 (1 photos) 2009-08-23 Presa La Colorada, El Llano, Aguascalientes (Agu), Mexico
Winter plumage.
207 (2 photos) 2009-08-23 Presa La Colorada, El Llano, Aguascalientes (Agu), Mexico
Juvenile. The yellowgreen legs can be hard to realize when in shadow and covered with mud. Here with Western Sandpiper (Calidris mauri) in front. The general appearance the two amongst is very clear on this picture, where LS is stocky and front centered, mouselike, while WS is center balanced with heavier chest and with long tibia appears large and tall.