gaggle of white geese

aves avian avifauna bay bill bird birding blue branta cago canada canadensis chick chordata duck ecology endothermic environment feathers feet flight floating flock fowl gaggle geese goose gosling homeothermic honking lake large manitoba marsh nature ornithology outdoor pair pond reed rural swim tachymetabolic vertebrate warmblooded water waterfowl webbed wet wilderness wildlife wings zoology