Long-tailed Tit, Aegithalos caudatus

Long-tailed Tit
Though it often flocks with the other tits in English parks, the Long-tailed Tit is not closely related to them and their North American cousins, the chickadees and titmice. A birder from the American west will immediately notice the similarity to our Bushtit (Psaltriparus minimus); both are tiny and long-tailed balls of fluff that travel in flocks and give repeated soft calls. And indeed they are classified as members of the same family, the Aegithalidae.