One of the 3 sandpipers on WAnimals

Birds · Charadriiformes · Scolopacidae
Calidris alpina
The species is abundant and widely distributed; it faces no significant short-term risk.
It is nicknamed the "sewing machine" for the rapid bobbing of its head as it probes the mud for food. It forms winter flocks of tens of thousands that wheel in perfect unison.
Weight
45 g – 65 g
Size
16 cm – 22 cm
Life expectancy
5 years
Diet
Carnivore
Feeds mainly on other animals.
Activity
Diurnal
Active mainly during the day.
Social structure
Herd
Lives in large groups as a strategy against predators.
AI-generated images: illustrations, not photographs.
Sources consulted: AnAge (genomics.senescence.info) · NHPBS NatureWorks · Animal Diversity Web · Animalia.bio · The Birds (oiseaux.net) · BioKIDS · Birds of the World
Parks and dive sites where this species has been documented — showing 10 of 38.
Other species in the catalogue with the most in common with Dunlin — same habitat, park, country, tags or family.
Based on what we already know about dunlin.
The pins mark the parks where its presence is documented.