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Articles

Vol. 32 No. 1 (2001)

RECOLONIZATION OF THE FLICKER AND OTHER NOTES FROM ISLA GUADALUPE, MEXICO

Submitted
September 24, 2025
Published
January 1, 2001

Abstract

During a visit to Isla Guadalupe from 31 May to 3 June 1996, we documented three species new to the island: the Barn Owl, Swainson's Thrush, and Hooded Oriole, and established first breeding records for the European Starling and Western Meadowlark. Red-shafted Flickers are now breeding on the island, representing a recent recolonization from the mainland following the extinction of the endemic population. We investigated the validity of Colaptes auratus rufipileus and concluded that it does not meet the standard for a phylogenetic species but differs from C. a. collaris at the 75% level usually associated with subspecific rank. Damage to the cypress forest by goats continues, and all species dependent on these trees are threatened by loss of habitat.

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