Long-tailed tit – Aegithalos caudatus
The long-tailed tit or long-tailed bushtit (Aegithalos caudatus), occasionally referred to as the silver-throated tit or silver-throated dasher, is a common bird found throughout Europe and Asia. The genus name Aegithalos was a term used by Aristotle for some European tits, including the long-tailed tit.

This species has been described as a tiny (at only 13–15 cm in length, including its 7–9 cm tail), round-bodied tit with a short, stubby bill and a very long, narrow tail. The sexes look the same and young birds undergo a complete moult to adult plumage before the first winter. The plumage is mainly black and white, with variable amounts of grey and pink.[9] Its appearance has given rise to the nickname “the flying lollipop”.

Globally, common throughout its range, only becoming scarce at the edge of the distribution.[9] The IUCN, BirdLife International and The British Trust for Ornithology (BTO) all list the long-tailed tit as a ‘species of least concern’, currently under little or no threat and is reasonably abundant.

Due to their small size they are vulnerable to extreme cold weather with population losses of up to 80% being recorded in times of prolonged cold. It is thought that populations rapidly return to previous levels due to high breeding potential

It sounds like this