Fiftieth supplement to the American Ornithologists’ Union Check-list of North American Birds

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This is the ninth Supplement since publication of the seventh edition of the Check-list of North American Birds (American Ornithologists’ Union [AOU]). It summarizes decisions made between 1 January and 31 December 2008 by the AOU’s Committee on Classification and Nomenclature—North and Middle America. Changes in this Supplement include the following: 1) seven species are added to the main list (including one transferred from the Appendix) on the basis of new distributional information (Anser anser, Patagioenas plumbea, Ninox scutulata, Tolmomyias flaviventris, Empidonomus aurantioatrocristatus, Acrocephalus schoenobaenus, and Emberiza chrysophrys), one of which (Ninox) also represents a new genus for the main list; 2) the distributional statement of one species (Lepidocolaptes lacrymiger) is changed by a split of extralimital taxa; 3) one species is changed (to Notharchus hyperrhynchus) by being split from an extralimital species (N. macrorhynchos); 4) three generic names (Acanthis, Spinus, and Chloris) are added as a result of splits from the genus Carduelis; 5) one genus (Cichlherminia) is lost by merger (into Turdus), and the scientific name of one species (Turdus lherminieri) is thereby changed; 6) the gender of the adjectival names of two species (Poecile hudsonicus and P. cinctus) is changed, owing to correction of the gender of the generic name; 7) the citation for one genus (Dives) is changed; 8) three English names are changed (Vireo caribaeus becomes San Andres [rather than Saint Andrew] Vireo, Ammodramus nelson becomes Nelson’s [rather than Nelson’s Sharp-tailed] Sparrow, and A. caudacutus becomes Saltmarsh [rather than Saltmarsh Sharptailed] Sparrow); and 9) one species is added to the Appendix (Circus buffoni). In addition, the scientific names of two species in the Appendix are changed (to Chroicocephalus genei and C. novaehollandiae [rather than Larus genei and L. novaehollandiae]); this change, based on a committee decision from 2007, was overlooked in the Supplement published in 2008 (Banks et al. 2008).

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ELECTRONIC FILE - Zoology

SWAP (2/19/2016) citation (corrected for inserting comma before et al., removing one before Jr, removing period after Jr):
Chesser RT, Banks RC, Barker FK, Cicero C, Dunn JL, Kratter AW, Lovette IJ, Rasmussen PC, Remsen JV Jr, Rising JD, et al. 2009. Fiftieth supplement to the American Ornithologists’ Union Check-list of North American Birds. Auk. 126(3):705–714