Sparow

Eurasian Tree Sparrow (Passer montanus) is a widespread resident in Himalayas and north-east India. Size: 14 cm
Small, seed-eating bird with thick, conical bill and pink legs. Sexes similar. Brown crown. Black spot on ear coverts. White on face and neck. Black chin and eye patch. Grayish-white underparts. Brown and black upperparts. White wing bars. The adult male House Sparrow might be confused with the Eurasian Tree Sparrow. The Eurasian Tree Sparrow has a black spot on the ear coverts and an entirely brown crown.

The flight call of the Chipping Sparrow is heard year-round. Its flight call is piercing and pure-tone, lasting about 50 milliseconds. The flight call may be transliterated as 'seen?' Chipping Sparrows migrate by night, and their flight calls are a characteristic sound of the night sky in spring and fall in the United States. In the southern Rockies and eastern Great Plains, the Chipping Sparrow appears to be the most common nocturnal migrant, judged by the number of flight calls detected per hour.