Saturday, July 12, 2014

Western Wood-Pewee

I discovered this photograph of a Western Wood-Pewee (and a couple of Northern Rough-winged Swallows) among my computer files. Erika and I took this photo years ago near Missoula in western Montana. As is the Eastern Wood-Pewee that I blogged about yesterday, the Western is found in woodlands. The two species can be separated by call and usually by range. Unlike the “Pee-a-wee” of the Eastern species, the Western’s call is described as “Pee-er” or “deer-me." Like the Eastern, populations of Western Wood-Pewees appear to be declining. Bemis and Rising (1969) suggest the lower numbers are due to cutting of western riparian habitat or other, unknown factors in their wintering range.

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