Eurasian Tree SparrowPasser montanus
6" (15 cm). Streaked brown above, dull white below. Crown chocolate brown, throat black, cheek white with prominent black spot. Sexes alike. Male House Sparrow similar, but has gray crown and lacks black spot on cheek.
Loud chirping, similar to that of House Sparrow.
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City parks, suburban areas, and farmland.
Introduced around St. Louis, Missouri, in 1870. Native to Europe and much of Asia.
This introduced species differs from its relative, the House Sparrow, in that the sexes are alike. It is much less aggressive and quarrelsome, and it is more gregarious, often assembling in larger flocks. Altogether, the Eurasian Tree Sparrow is a more attractive bird, both in appearance and behavior. These birds sometimes visit grainfields and feed on corn, oats, and wheat, but they also consume many injurious weed seeds and, to a lesser extent, insects.
5 brown-spotted buff eggs in a tree cavity, bird box, or hole in a wall.