Baird's sandpiper

The Baird's sandpiper 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.