tropical American heron related to night herons

[ Syn: boatbill , boat-billed heron , cochlearius cochlearius ]

diving ducks of North America having a bluish-grey bill

[ Syn: scaup , scaup duck , bluebill ]

freshwater duck of the northern hemisphere having a broad flat bill

[ Syn: shoveler , shoveller , anas clypeata ]

small birds of the Old World tropics having bright plumage and short wide bills