Costa Rica Species
Calidris alba
AnimaliaIUCN LCApproved Recent Sighting

Calidris alba

Sanderling

Pallas, 1764

Detailed Texts Multi-lang
Small and very active shorebird, famous for running after waves on the seashore. It has a very pale plumage in winter.

Added by

Anonymous Curator

Reviewed by

Julia Trouin

Last modified by

Julia Trouin

Taxonomy

PhylumChordata
ClassAves
OrderCharadriiformes
FamilyScolopacidae
GenusCalidris
Taxonomic AuthorityPallas, 1764

Ecology & Status

Origin

Native

Population Trend

Decreasing

Breeding Season

Year Round

Trophic Role

Carnivore

Recent Sightings

Yes

Habitat Summary Multi-lang

Inhabits mainly sandy beaches, sandbars, and coastal zones worldwide during migration.

Behaviour Multi-lang

Gregarious behavior, usually seen in small groups searching for food in the surf.

Social Activity Multi-lang

Highly gregarious during migration and winter.

Feeding Guild Multi-lang

Active foraging through rapid pecking in wet sand.

Trophic Chain Details Multi-lang

Feeds on small crustaceans, insects, and other marine invertebrates.

Reproductive Behaviour Multi-lang

Breeds in the Arctic tundra with monogamous or polygynous mating systems.

Physical Measures

Length (cm)

18.0 - 21.0 cm

Weight (Grams)

40 g - 60 g

Offspring per cycle3 - 4
Sexual DimorphismYes

Lifespan

Sexual Maturity

1 - 2 Years

Gestation / Incubation

22 - 25

Lifespan Estimated
Males3 - 5 Years
Females3 - 5 Years

Sexual Dimorphism

Males Multi-lang

Plumage similar to the female.

Females Multi-lang

Plumage similar to the male.

Evolutionary Adaptations Multi-lang

Short and fast legs: Adapted for making extremely fast movements while following and retreating from the waves.

Main Threats Multi-lang

Human disturbance on beaches, loss of migratory stopover habitats, and coastal pollution.

Interesting Facts Multi-lang

It is a highly migratory bird that travels thousands of kilometers from the Arctic to the southern hemisphere.
Calidris alba | Sanderling