boat-billed heron(n = noun.animal) boatbill, broadbill, cochlearius cochlearius - tropical American heron related to night herons;
is a kind of heron
is a member of cochlearius, genus cochlearius

black-crowned night heron, great blue heron, great white heron, heron, little blue heron, night heron, snowy heron, yellow-crowned night heron