"Crested Tit (Lophophanes cristatus)
Although not as colourful as some other tits, its 'bridled' face pattern and the upstanding black and white crest make this a most distinctive species. Crested tits feed actively, clinging to trunks and hanging from branches, like most tits, searching for a wide range of invertebrates and pine seeds. They store food extensively during early winter, using it in late winter. Largely confined to ancient Caledonian pine forests and Scots pine plantations. It spends its time foraging on the trunk and large branches of pine trees and after the breeding season will join other tit species in roving flocks. Will visit garden birdtables and feeders. Can be seen all year round and feed on insects and seeds."
Description taken from RSPB website. They are on the RSPB Amber List, not endangered but not plentiful either.