Western sandpiper

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Western sandpiper

Least Concern  (IUCN 3.1)[1]
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Charadriiformes
Family: Scolopacidae
Genus: Calidris
Species:
C. mauri
Binomial name
Calidris mauri
(Cabanis, 1857)
Synonyms

Ereunetes mauri
Erolia mauri

The western sandpiper (Calidris mauri) is a small

shorebird. The genus name is from Ancient Greek kalidris or skalidris, a term used by Aristotle for some grey-coloured waterside birds. The specific mauri commemorates Italian botanist Ernesto Mauri (1791–1836).[2]

This is one of the most abundant shorebird species in North America, with a population in the millions.

Description

Adults have dark legs and a short, thin, dark bill, thinner at the tip. The body is brown on top and white underneath. They are reddish-brown on the crown. This bird can be difficult to distinguish from other similar tiny shorebirds, especially the semipalmated sandpiper. This is particularly the case in winter plumage, when both species are plain gray. The western sandpiper acquires winter plumage much earlier in the autumn than the semipalmated sandpiper.

Measurements:[3]

  • Length: 5.5–6.7 in (14–17 cm)
  • Weight: 0.8–1.2 oz (22–35 g)
  • Wingspan: 13.8–14.6 in (35–37 cm)

Breeding

Their breeding habitat is

incubate
and care for dependent young, who feed themselves. Sometimes the female deserts her mate and brood prior to offspring fledging.

Migration

They migrate to both coasts of North America and South America, as well as the Caribbean. It is a very rare vagrant to western Europe.

Diet

These birds forage on mudflats during migration and the non-breeding season by probing or picking up food by sight. Foraging occurs on tundra and wet meadows during the breeding season. They had been thought to mainly eat

mollusks, polychaete worms, and seeds,[4] but are now known to heavily graze on biofilm from the surface of intertidal mudflats
.

References

External links