Spinus spinus
Diet
Mainly tree seeds, especially alder, spruce and birch; chicks fed more insects
Habitat
Coniferous and mixed woodland, especially humid areas
Range
Much of Eurosiberia and northern Africa; irregular large southward movements
Clutch size
2-6 eggs
Incubation period
10-14 days
Size
11-12.5cm
Weight
12-18g
The Eurasian siskin is a small finch, 11 to 12.5cm long and weighing 12 to 18g. Males have a yellow face and breast, a black cap and bib and black wings with a yellow wingbar, while females and young are olive-toned, with a greenish head and no cap. It is very social, forming flocks, and is an acrobatic feeder (Wikipedia, general species account).
It lives in coniferous and mixed woodland, especially humid areas, eating mainly tree seeds such as alder, spruce and birch. It nests in conifers; females lay two to six eggs, incubate them for 10 to 14 days and often raise two broods. It occurs across much of Eurosiberia and northern Africa with large southward movements every few years. The source does not mention Nepal or South Asia (Wikipedia, general species account).