Semipalmated sandpiper

The semipalmated sandpiper (Calidris pusilla) is a very 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 pusilla is Latin for "very small".

Semipalmated sandpiper
Individual on a mudflat in Heislerville, Cumberland County, NJ, May 2022.
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Charadriiformes
Family: Scolopacidae
Genus: Calidris
Species:
C. pusilla
Binomial name
Calidris pusilla
(Linnaeus, 1766)
Synonyms
  • Tringa pusilla Linnaeus, 1766
  • Ereunetes pusillus (Linnaeus, 1766) (but see text)
  • Erolia pusilla (Linnaeus, 1766)

It is sometimes separated with other "stints" in Erolia, but, although these apparently form a monophyletic group, the present species' old genus Ereunetes had been proposed before Erolia.

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