Habitat: This species can be observed along the Caribbean and Pacific coast of Panama. It is more abundant on the Pacific side. Distribution: Calidris mauri breeds in Siberia and western Alaska and migrates south along the United States coasts to South America. Natural History Notes: This species usually feeds on costal tidal flats, but can also feed on open water and exposed mud. Conservation status according to IUCN 2008 Red list: Least Concern (LC). Characteristics: The total length of this species varies between 15.88 cm and 17.14 cm (measured from tip of bill to end of tail). The beak is black, fairly long and shows a little bow at the tip. It is interesting to note that the female’s beak is longer. The legs are also black. This Western species has scapulars (close to shoulders) of a wine red coloration when it is seen flying in the United States, but this coloration is usually lost when it reaches Panama, so it cannot be used as a characteristic. This species is very similar to Calidris pusilla, except that it has a thin gray band that crosses the chest.