Semipalmated Sandpiper

• In the Bay of Fundy it doubles its weight in two weeks feeding on a single tiny mud-dwelling crustacean, and on that fat it undertakes a non-stop flight of more than four thousand kilometres over the Atlantic to South America.
• Its migrating flocks wheel in unison, flashing alternately their dark backs and pale bellies, a synchronised shimmer of tens of thousands of birds that disorientates peregrine falcons.
• Its population has fallen markedly over recent decades, and much of the decline is put down to the degradation of the few stopover wetlands along its route.

Skeleton type

Vertebrate - internal bony skeleton (bird)

Habitat and environment

Arctic tundra for breeding; marshes, mudflats and saltpans of South America for wintering

Sexual maturity

12 months

Gestation / incubation

20 days

Litter / clutch size

4

Sources consulted: https://es.wikipedia.org/wiki/Calidris_pusilla

The pins mark the parks where its presence is documented.