资讯
The presence of this nuthatch is typically announced by its nasal calls. The red-breasted nuthatch has the unusual habit of smearing resin around the entrance hole to its nest, presumably to ...
Spring snow, not surprisingly, tends to drive the birds to the feeders, especially the early migrants back in the region. But ...
Dispersal and migration: poorly known. Does not undertake large-scale irruptions (unlike the red-breasted nuthatch), but white-breasteds in the Rockies regularly move onto the Great Plains ...
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