Birder's Guide

DEC 2018

Birder's Guide is the American Birding Association's newest publication. Each issue focuses on a key subject, providing tips from experienced birders on a wide variety of topics like Travel, Listing & Taxonomy, Gear, and Conservation & Community.

Issue link: http://bg.aba.org/i/1062446

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38 Birder's Guide to Listing & Taxonomy | December 2018 Check-list Supplement Redux, v. 2018 Harris's Hawk White-tailed Hawk Gray Hawk Red-shouldered Hawk Broad-winged Hawk Hawaiian Hawk Short-tailed Hawk Swainson's Hawk Zone-tailed Hawk Red-tailed Hawk Rough-legged Hawk Ferruginous Hawk Suboscine Reshuffle –––––––––––––––––––––––––––––––––– The becard family (Tityridae) now comes before flycatchers (Tyrannidae) in the se- quence, and, within the latter, subfamilies found in the ABA Area are now in the fol- lowing sequence: • Elaeniinae (elaenias and tyrannulets) • Tryanninae (kingbirds, kiskadees, Myiarchus) • Fluvicolinae (pewees, empids, phoebes) Hill Myna Split and Removed from Check-list –––––––––––––––––––––––––––––––––– Hill Myna has been split into Common Hill-Myna (Gracula religiosa) and Southern Hill-Myna (Gracula indica). The former was on the Check-list because it was thought to be established in Puerto Rico. That seems no longer to be the case. There is also a dwindling population in Florida. Common Hill-Myna is moved from the main check - list to the appendix as it's no longer considered established in North America. Notable Proposals Not Accepted –––––––––––––––––––––––––––––––––– • splitting Mexican Duck and Mallard • splitting Yellow Warbler • splitting Scopoli's and Cory's shearwaters • splitting Boyd's and Audubon's shearwaters • re-lumping the bean-geese • splitting Barn Owl • splitting LeConte's Thrasher • splitting Stercorarius • splitting Pacific Swift • changing Rock Pigeon back to Rock Dove • moving Lesser Whitethroat from Sylvia to Curruca • changing Common Gallinule to American Moorhen and Common Moorhen to Eurasian Moorhen Finally, while the AOS's NACC didn't split Mexican Duck from Mallard, for the folks at eBird, it seems the genetic evidence was overwhelming that Mexican Duck's clos- est relative isn't Mallard: it's Mottled Duck. And that Mallards and American Black Ducks interbreed just as much as Mexican Ducks and Mallards do, if not more so. So starting in summer 2018, Mexican Duck (Anas diazi) is treated as a separate species on eBird. This is the first time species-level North American bird taxonomy has var- ied between eBird and NACC. If this trend continues, we may find ourselves in inter- esting times ahead!

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