Adults have black legs and a short, straight, thin dark bill. They are dark brown on top and mainly white underneath with a black patch on the rump. The head and breast are light brown with dark streaks. In winter plumage, this species is paler brownish gray above. This bird can be difficult to distinguish from other similar tiny shorebirds; these are known collectively as "peeps" or "stints".
One of the best identification features is the long wings, which extend beyond the tail when the bird is on the ground. Only the white-rumped sandpiper also shows this, and that bird can be distinguished by its namesake feature.
|length||7–7.6 in (180–190 mm)|
|weight||38 g (1.3 oz)|
|wingspan||17 in (430 mm)|
|wing||117.6–125.3 mm (4.63–4.93 in)|
|tail||50–57 mm (2.0–2.2 in)|
|culmen||20.5–24.5 mm (0.81–0.96 in)|
|tarsus||21.3–24.2 mm (0.84–0.95 in)|
These birds forage by moving about mudflats, picking up food by sight. They mainly eat insects, also some small crustaceans.
This bird was named after Spencer Fullerton Baird, a 19th-century naturalist.
- BirdLife International (2012). "Calidris bairdii". IUCN Red List of Threatened Species. Version 2013.2. International Union for Conservation of Nature. Retrieved 26 November 2013.
- Godfrey, W. Earl (1966). The Birds of Canada. Ottawa: National Museum of Canada. p. 154.
- Sibley, David Allen (2000). The Sibley Guide to Birds. New York: Knopf. p. 185. ISBN 0-679-45122-6.
|Wikimedia Commons has media related to Calidris bairdii.|
|Wikispecies has information related to: Calidris bairdii|
- An online identification article covering this species and other small calidrids at surfbirds.com
- Calidris bairdii on Avibase
- Baird's Sandpiper Species Account – Cornell Lab of Ornithology
- Baird's Sandpiper videos, photos, and sounds at the Internet Bird Collection
- Baird's Sandpiper photo gallery at VIREO (Drexel University)
- Interactive range map of Calidris bairdii at IUCN Red List maps