NESTING BIRDS OF FARALLON DE SAN IGNACIO, SINALOA, MEXICO

Abstract

From 1999 to 2001 we made the first thorough bird surveys of Farallón de San Ignacio, an islet off Topolobampo, Sinaloa. The islet hosts 100–200 nesting pairs of the Red-tailed Tropicbird, about 1,200 Brown Boobies, 1,400–1,650 Blue-footed Boobies, and about 1,000 Heermann’s Gulls. The Double-crested Cormorant and Yellow-footed Gull nest irregularly in small numbers.