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Cassin's finch is one of three North American finches with varying degrees of red coloration on males (the others are the purple finch and the ubiquitous house finch. Male Cassin's finches have bright red crowns, a red flush on the chest, and mostly unmarked undersides; females have numerous neatly-defined dark streaks on the breast and belly. They are found mainly in mountain conifer forests, but may drop down to lower altitudes in winter. These were coming to a feeder in Swall Meadows, at about 2000 meters altitude on the eastern Sierra slope in Mono County, California; the females in conifers were in the San Jacinto Mountains in southern California. |
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