Meaning : Tropical American heron related to night herons.
Synonyms : boat-billed heron, boatbill, cochlearius cochlearius
Meaning : Diving ducks of North America having a bluish-grey bill.
Synonyms : bluebill, scaup, scaup duck
Meaning : Freshwater duck of the northern hemisphere having a broad flat bill.
Synonyms : anas clypeata, shoveler, shoveller
Meaning : Small birds of the Old World tropics having bright plumage and short wide bills.