(HTML abstract)* ffrench, Richard; O'Neill, John Patton & Eckelberry, Don R. (1991): "A guide to the birds of Trinidad and Tobago" (2nd edition).
(HTML abstract)* ffrench, Richard; O’Neill, John Patton & Eckelberry, Don R. (1991): "A guide to the birds of Trinidad and Tobago" (2nd edition).