Some species leave mountaintops to winter in the foothills. Camping in the dead of winter at the top of a Catskill mountain provides an interesting perspective on bird migration. Only six months previously, I had seen chickadees, woodpeckers, and other species that are usually not considered migrants, around my campsite Yet here I was 3,500 feet above sea level in New York State with nearly three feet of snow on the ground and not a bitd was present. If they weren't migrants, where had they gone.
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