Lincoln Sparrow, Bull Trout Lake, Idaho

Field Notes: Bull Trout Lake


Bull Trout Lake is a natural lake, not a reservoir, located near the divide between the Middle Fork of the Salmon River and the South Fork of the Payette River.1 It’s almost certainly glacier carved. At 7,300 feet, it’s easily high enough to have been glaciated during the Laurentide Glaciation, and the surrounding pot hole…

Cassin's Vireo, Boise National Forest, Idaho

Birding the Boise Front


The Boise Front is the range of hills that rises steeply immediately to the northeast of the city. They tower 6,000 feet above the Boise River Valley, and provide a completely different set of ecozones than the lowlands around Boise. In the summer, its always worth a birding trip to take the twisting, windy road…

Violet Sabrewing, Costa Rica

Return of Bird of the Week: Violet Sabrewing


Another stunningly beautiful hummingbird, to which WC’s photo doesn’t begin to do justice. A gem of purple, blue and green, with a strongly decurved bill, this is another ridiculously colorful hummingbird. It’s also Central America’s largest hummingbird, measuring 15 centimeters (a little over 5.25 inches). Unlike most hummingbirds, male Sabrewings compete for females on a…