
Black-capped Chickadee
While it is true that fall migration proceeds at a much more leisurely pace than migration in the spring, each species moves according to its own internal calendar. In late August and early September you might find warblers, Rose-breasted Grosbeaks, flycatchers, vireos, orioles, Cedar Waxwings, and Scarlet Tanagers foraging together in a single patch of woods. A month later the same patch of forest might hold sparrows, kinglets, Winter Wrens, Rusty Blackbirds, nuthatches, Hermit Thrushes, and boreal finches, while waterfowl on rivers and ponds increase in numbers and diversity. I usually notice the switch around the fall equinox, when the sparrows start to outnumber the warblers and I realize that it’s been a while since I last saw a flock of Cedar Waxwings. Now is the time to look for American Pipits in open scrubby areas or along rocky shorelines, scoters and grebes along the river, hawks and Turkey Vultures soaring toward southern climes, and any lingering warblers in the hope it is something other than a Yellow-rumped.
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