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Danforth, S.T. 1935. SUPPLEMENTARY ACCOUNT OF THE BIRDS OF THE VIRGIN ISLANDS, INCLUDING CULEBRA AND ADJACENT ISLETS PERTAINING TO PUERTO RICO, WITH NOTES ON THEIR FOOD HABITS. The Journal of Agriculture of the University of Puerto Rico. 19, 4 (Oct. 1935), 439–472. DOI:https://doi.org/10.46429/jaupr.v19i4.14279.