Least Sandpiper

Calidris minutilla

The Least Sandpiper is the smallest shorebird in the world, weighing only about 1 ounce—roughly the same as a single AA battery.

Scientific name
Calidris minutilla
Taxonomy
Animalia › Chordata › Aves › Charadriiformes › Scolopacidae › Calidris
IUCN Red List status
Least Concern
Population trend
decreasing
Biome
wetland
Habitat
Mudflats, salt marshes, damp meadows, and sandy shores.
Diet
Small invertebrates including crustaceans, insects, snails, and marine worms.
Range
North America, Central America, South America, Caribbean
Size
13-15 cm in length; wingspan of 27-28 cm
Lifespan
4-9 years
Active
diurnal
Threats
Wetland degradation, coastal development, and climate-induced changes to Arctic breeding grounds.
Safe to approach?
Harmless. These birds are sensitive to disturbance while feeding. Maintain a distance of at least 30 meters; if the bird stops foraging to watch you, move back. Do not allow dogs to chase them.

The least sandpiper ( Calidris minutilla ) is the smallest shorebird. The genus name is from Ancient Greek kalidris or skalidris , a term used by Aristotle for some grey-coloured waterside birds. The specific minutilla is Medieval Latin for "very small".

Photo: Bill Levine, CC-BY, via iNaturalist

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