06-October-2021

The following changes have been made to the Systematic List as outlined in the British Ornithologists’ Union Records Committee (BOURC): 52nd Report (January 2021).

Changes to the British List after the Adoption of Version 10.2 of the IOC World Bird List

Western Subalpine Warbler Sylvia iberiae is given full specific status being split from Eastern Subalpine Warbler Sylvia cantillans, with both species moving to the genus Curruca. The new annotation being: After Sardinian Warbler Curruca melanocephala Western Subalpine Warbler † A Curruca iberiae (Svensson) V monotypic. After Moltoni’s Subalpine Warbler Curruca subalpina Eastern Subalpine Warbler † A Curruca cantillans (Pallas) V cantillans (Pallas) V albistriata C.L. Brehm. The sequence of Sylviidae has been revised with, for most species, a change in genus from Sylvia to Curruca:   Blackcap Sylvia atricapilla Garden Warbler Sylvia borin Barred Warbler Curruca nisoria Lesser Whitethroat Curruca curruca Sardinian Warbler Curruca melanocephala Western Subalpine Warbler Curruca iberiae Moltoni’s Subalpine Warbler Curruca subalpina Eastern Subalpine Warbler Curruca cantillans Whitethroat Curruca communis

The sequence of Rallidae has been revised:   Water Rail Rallus aquaticus Corncrake Crex crex Sora Rail Porzana carolina Spotted Crake Porzana porzana Moorhen Gallinula chloropus Coot Fulica atra American Coot Fulica americana Allen’s Gallinule Porphyrio alleni Western Swamphen Porphyrio porphyrio

The sequence of Phalacrocoracidae has been revised:   Cormorant Phalacrocorax carbo Shag Phalacrocorax aristotelis

The sequence of Ficedula has been revised:   Red-breasted Flycatcher Ficedula parva Pied Flycatcher Ficedula hypoleuca Collared Flycatcher Ficedula albicollis

The sequence of Passerellidae has been revised:             Dark-eyed Junco Junco hyemalis White-crowned Sparrow Zonotrichia leucophrys White-throated Sparrow Zonotrichia albicollis