Prothonotary Warbler. The prothonotary warbler is a small songbird of the New World warbler family.
It is the only member of the genus Protonotaria. The prothonotary warbler was described by the French polymath Georges-Louis Leclerc, Comte de Buffon in 1779 in his Histoire Naturelle des Oiseaux from a specimen collected in Louisiana.
Buffon coined the French name Le figuier protonotaire. The bird was also illustrated in a hand-coloured plate engraved by François-Nicolas Martinet in the Planches Enluminées D'Histoire Naturelle which was produced under the supervision of Edme-Louis Daubenton to accompany Buffon's text.
Neither the plate caption nor Buffon's description included a scientific name but in 1783 the Dutch naturalist Pieter Boddaert coined the binomial name Motacilla citrea in his catalogue of the Planches Enluminées. The prothonotary warbler is now the only species placed in the genus Protonotaria that was introduced in 1858 by the American naturalist Spencer Baird.
The species is monotypic, no subspecies are recognised. The genus name is from Late Latin protonotarius meaning protonotary, a notary attached to the Byzantine court who wore golden yellow robes. The specific citrea is from Latin citreus meaning the colour citrine. It was once known as the golden swamp warbler. A molecular phylogenetic study of the family Parulidae published in 2010 found that the prothonotary warbler was a sis