The Prothonotary WarblerProtonotaria citrea, is a small songbird of the New World warbler family. It is the only member of the genus Protonotaria. It has an olive back with blue-grey wings and tail, yellow underparts, a relatively long pointed bill and black legs. The adult male has a bright orange-yellow head; females and immature birds are duller and have a yellow head.
It breeds in hardwood Swamps in extreme southeastern Ontari and eastern United Stated. It winters in the West Indies, Central America and southern South America. The preferred foraging habitat is dense, woody streams.
This bird was named after officials in the Roman Catholic Church known as the protonotarii who wore golden robes. It was once known as the Golden Swamp Warbler.