Observations of leucistic shorebirds in NW Mexico

摘要

We report the presence of leucism in the plumage of three species of migratory shorebirds observed in NW Mexico in the last five years: Willet Tringa semipalmata, American Avocet Recurvirostra americana and Marbled Godwit Limosa fedoa. For Willet this is the second record of leucism in the subspecies T. s. inornatus, while for the other two species these are the first records.