Fifty-eighth supplement to the American Ornithological Society'sCheck-list of North American Birds

p. xii.The exclusion of Greenland from the AOS geographical area is reversed.Under the section Geographic Coverage, change reference to the eastern boundary of the AOS geographical area from ''the boundary between Canada and Greenland'' to ''Greenland.'' Greenland is geographically, physiographically, and tectonically part of North America, and was considered part of the area of coverage from the first (AOU 1886) through the fifth editions of the Check-list (AOU 1957).In the 6th edition (AOU 1983), however, Greenland was removed from the area, and seven species included only on the basis of records from Greenland were transferred to the hypothetical list (Appendix B in that edition).We return six of these species (Tadorna ferruginea, Rallus aquaticus, Charadrius veredus, Corvus frugilegus, C. cornix, and Anthus pratensis; the seventh species, Platalea leucorodia, was returned in Chesser et al. 2010) from the Appendix to the main list, some with updated taxonomy, and add three new species (Sylvia atricapilla, Zoothera aurea, and Acanthis cabaret) on the basis of additional records from Greenland (Boertmann 1994) in the appropriate sequence in the taxonomic section below.In addition, four species already on the main list (Anser brachyrhynchus, Pluvialis apricaria, Turdus pilaris, and T. iliacus) are no longer considered accidental, due to breeding in Greenland, and the code '' A'' is removed from their names.pp.