2011

Is the Brown Creeper more than one species?

Brown Creeper is such a familiar and easily-identified bird that few birders really study it closely. Slight regional differences in plumage and song have long been known, but recent DNA research (Manthey et al., 2010) has shown that these subtle outward differences go much deeper. (David Callahan summarizes the research at Birdwatch). There is a […]

Is the Brown Creeper more than one species? Read More »