Ornithological Society’s (AOS’s) Check-list of North American Birds, published today in Ornithology, includes several updates to the classifications of bird species found in North America, Central America, and the Caribbean.
A few highlights from this year’s supplement, detailed below, include species splits for Troglodytes aedon (House Wren) and Tyto alba (Barn Owl); a lumping of Acanthis flammea (Common Redpoll), Acanthis hornemanni (Hoary Redpoll), and Acanthis cabaret (Lesser Redpoll); a genus merger for bitterns; and a genus split for plovers.