Eurasian tree sparrow (Passer montanus)

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The Eurasian tree sparrow (Passer montanus) is a passerine bird in the sparrow family with a rich chestnut crown and nape, and a black patch on each pure white cheek. The sexes are similarly plumaged, and young birds are a duller version of the adult.

The Eurasian tree sparrow is 12.5–14 cm (5–5½ in) long,with a wingspan of about 21 cm (8.25 in) and a weight of 24 g (0.86 oz), making it roughly 10% smaller than the house sparrow.The adult’s crown and nape are rich chestnut, and there is a kidney-shaped black ear patch on each pure white cheek; the chin, throat, and the area between the bill and throat are black. The upperparts are light brown, streaked with black, and the brown wings have two distinct narrow white bars. The legs are pale brown, and the bill is lead-blue in summer, becoming almost black in winter.

Common bird in the Danube Delta.

photo: Mihai BACIU


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