摘要:We report here 4 new bird records found among a large-scale compilation of specimen records in museums worldwide, Atlas de las Aves de Mexico. The new records are for 4 migratory species, Empidonax alnorum (Alder Flycatcher), Vireo solitarius (Solitary Vireo), Catharus fuscescens (Veery), and Zonotrichia leucophrys (Whitecrowned Sparrow). These species are not to-date known from Cozumel, although they are considered transients in the Yucatán Peninsula.