Friday, April 24, 2020

White-Crowned Sparrow, Zonotrichia Leucophrys


Day 194: I refer to them as "racing-stripe sparrows" or "the guys with the go-faster stripes." The head of the White-Crowned Sparrow (Zonotrichia leucophrys) is marked by three distinct white stripes, one through each eye and one on the crown which meet at the back of the head, which makes the bird look as if it's wearing a bicycle helmet. When the bird is excited or curious, it may raise its crown feathers. As a species, they are gregarious little critters, often feeding among other birds including juncos and other sparrows. Their primary diet consists of weed and grass seeds, as well as a wide variety of insects and even some small fruits such as elderberries or blackberries. Their feeding habits resemble those of the Spotted Towhee: hop, scratch, hop-back-scratch. This action raises seeds and bugs to the surface where they are more accessible. White-Crowned Sparrows tend to stay in any given area, so their song often shows dialectic differences in different regions. Males which live on the border between two regions may learn to sing two different dialects. The locals can often be heard calling for "more cheezies," one of the mnemonics which can be used to identify this bird by ear.

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