Twite

The twite is similar in size and shape to a linnet, 13–13.5 centimetres long, but lacks the red head patch and breast of the linnet and the redpolls. It is brown streaked with black above; adult males have a pink rump, while immatures and females have a brown one. The underparts are buff to whitish, streaked with brown, and the conical bill is yellow in winter and grey in summer. The call is a distinctive nasal twaa-it, which gives the bird its name, and the song contains fast trills and twitters. (Wikipedia, general species account)

This partially migratory finch has a strongly disjunct distribution in northern Europe and in Asian mountains from eastern Turkey to Nepal, western China and Mongolia. It breeds on alpine grassland and low shrubland, at 3,600–4,900 metres in Asia but down to sea level in northwestern Europe, where it is associated with low-intensity coastal farming. It feeds mainly on small seeds and occasionally insects. In winter many birds move south or to the coasts, often in large flocks, sometimes mixed with other finches. (Wikipedia, general species account)