Coloración aberrante (leucismo parcial) en el pinzón mexicano (Haemorhous mexicanus) en una zona urbana del centro de México

Abstract

We report the presence of a House Finch (Haemorhous mexicanus) with partial leucism in the city of Pachuca, Hidalgo. The individual was observed in two occasions interacting with other finches that had regular coloration. Pigment aberrations may help identify populations with genetic problems or populations facing chronic stress.