In their South American winter home and on the breeding grounds of the Arctic, these birds congregate in enormous flocks but on the Atlantic Coast they usually associate in small numbers with other Sandpipers. Northern migration is principally thru central United States and most large flocks make a direct flight from Canada to South America via the ocean route.
The nuptial song is given on the wing but is weak and squeaky "with a weird dripping quality like water dropping in a small cavern."
When their feeding grounds are covered at high water they rest, and often I have approached within oar's length before they took wing. Food always seems to be plentiful for I have never seen one without more or less fat on its body.
Soper found them nesting on Baffin Island where the young were fully fledged by early August.
North and South America.