Ralph De Sola, Federal Writers’ Project. 
BOAT-BILLED HERONS (Cancroma cochlearia). Length: iy 2 feet. Range: Trop¬ 
ical America. 
The boat-bill uses its bill as a shovel for turning over mud when the bird 
searches for worms, frogs and the like. 
Ralph De Sola, Federal Writers’ Project. 
COCOI HERON (Ardea cocoi). Height: 2y 2 
feet. Range: Rivers of southern South 
America. 
This heron resembles the great blue 
heron of North America in haunts, habits, 
call notes and general appearance. When 
the swamps of its native land dry up, these 
herons leave for the river valleys. 
