A Bluebird is a sparrow-sized bird – not to be confused with the much bigger and bolder Blue Jay. The Bluebird is a member of ...
Though house sparrows (Passer domesticus) look a bit like native North American species such as chipping sparrows (Spizella passerina), they aren't closely related. These invasive and aggressive ...
The American tree sparrow often occurs in flocks of up to 50 birds. In habitat and behavior, they are much like field sparrows, but American tree sparrows are more frequent at bird feeders.
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