|Map of eBird reports of Baird's sandpiper Year-Round Range Summer Range Winter Range|
The Baird's sandpiper (Calidris bairdii) is a small shorebird. It is among those calidrids which were formerly included in the genus Erolia, which was subsumed into the genus Calidris in 1973. The genus name is from Ancient Greek kalidris or skalidris, a term used by Aristotle for some grey-coloured waterside birds. The English name and specific bairdii commemorate Spencer Fullerton Baird, 19th-century naturalist and assistant secretary of the Smithsonian Institution.
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||180–190 mm (7–7.6 in)|
|weight||38 g (1.3 oz)|
|wingspan||430 mm (17 in)|
|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.
- BirdLife International (2012). "Calidris bairdii". IUCN Red List of Threatened Species. Version 2013.2. International Union for Conservation of Nature. Retrieved 26 November 2013.
- Ryser, Fred A. (1985). Birds of the Great Basin: A Natural History. Reno, NV, US: University of Nevada Press. p. 193. ISBN 0-87417-080-X.
- Jobling, James A (2010). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. pp. 66, 84. ISBN 978-1-4081-2501-4.
- 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|
- North American Peeps: A Different Look at an Old Problem (identification article covering this species and other small calidrids) at surfbirds.com
- BirdLife species factsheet for Calidris bairdii
- "Calidris bairdii". Avibase.
- Baird's Sandpiper Species Account – Cornell Lab of Ornithology
- "Baird's Sandpiper media". Internet Bird Collection.
- Baird's Sandpiper photo gallery at VIREO (Drexel University)
- Interactive range map of Calidris bairdii at IUCN Red List maps
- Audio recordings of Baird's sandpiper on Xeno-canto.
- Calidris bairdii in the Flickr: Field Guide Birds of the World
- Baird's sandpiper media from ARKive