Bicknell's Thrush

How many Bicknell's Thrush are there in the world?

Bicknell’s Thrush (*Catharus bicknelli*) is one of the most range-restricted bird species in North America. In the United States (U.S.), it occurs only in the disturbed montane forests of fir (*Abies balsamea*) and spruce (*Picea* spp.) in the …