The White-collared Swift is a large swift with a conspicuous white collar on its black body. It flies in flocks across the American tropics and catches insects in the air.
It is black with a distinct white collar and a fairly long, forked tail.
It flies in flocks and catches insects in the air. In the tropics it uses airspace above mountains, forests, and open country.
At Yacambú, Venezuela, nests near large, spray-filled waterfalls were mainly mud, with fresh green vegetation in new nests.
All four closely monitored nests at that park contained two eggs.
One Yacambú nest with exact dates took 39 days from laying to complete hatching.
An extinction-risk assessment has not been added yet.