Listening to a Continent Sing

the companion website to the book by Donald Kroodsma


Red Rock Lakes National Wildlife Refuge, Montana

June 3, 5:45 a.m.

Sunrise at 5:41 a.m.

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Still another white-crowned sparrow of this local dialect. He sings from an aspen just a few feet away, 15 essentially identical songs over three minutes.

Here's a quick comparison of the songs of these three neighboring white-crowned sparrows: MT-269, MT-270, MT-271.


American robin, an air-borne swallow (tree swallow?), sapsucker drums, ruffed grouse drum (0:59, 3:05--nice "eastern species"; with a second drumming grouse in the distance--best seen in sonagrams along the baseline, a challenge to actually hear), female elk in distance, mountain chickadee, ruby-crowned kinglet, MacGillivray's warbler, warbling vireo.


Photo by Robert Royse