Bohemian waxwing

The Bohemian waxwing is a starling sized passerine that breeds in the northern forests of the Palearctic and North America, identified by black face markings, a pointed crest, wings patterned with white and bright yellow, and red, wax-like tips on some feathers that give the species its name. It is highly migratory, moving south for winter, and in some years large numbers irrupt far beyond their usual winter range in search of the fruit that makes up most of their diet. The birds become very tame in winter, entering towns and gardens to feed, but face hazards including intoxication, sometimes fatal, from alcohol produced by fermenting fruit, as well as predation and collisions with vehicles and windows; with a global population above three million and a large breeding range, the species is classified as Least Concern despite some decline.