Web-footed birds are a type of waterfowl that have webbed feet, which help them to swim. Examples of web-footed birds include SWAN (4 letters), pelican (7 letters), ALBATROSS (9 letters), DUCK (4 letters), AUK (3 letters), GOOSE (5 letters), LOON (4 letters), GULL (4 letters), AVOCET (6 letters), and GANNET (6 letters). These birds are adapted to living in aquatic environments, and their webbed feet allow them to move quickly through the water.