Western Birds

Vol. 49, No. 4

December 2018

Western Field Ornithologists



Western Birds 45(4) Front Cover


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Main Articles

The 42nd Annual Report of the California Bird Records Committee:
2016 Records
Guy McCaskie, Stephen C. Rottenborn,
Scott B. Terrill, and Thomas A. Benson

Egg Destruction by Males in the Western Grebe and Clark’s Grebe
Floyd E. Hayes, Dylan G. Turner, Nathan D. Zimmerly,
Manuel B. Peralta, Bryan J. McIntosh, and Mychal E. Hellie

The Bumblebee Hummingbirds (Atthis heloisa) of Ramsey Canyon Revisited Christopher W. Swarth


Common Cuckoo (Cuculus canorus) Courtship in Southwestern Alaska and Summary of Occurrence in the State Daniel D. Gibson

Green Heron Preys upon Hummingbirds
Michael C. Long and Kimball L. Garrett

Depredation of Black-chinned Hummingbird Nestlings
by Yellowjackets
Krista Lyons

Evidence of Intergradation within the Golden-cheeked Woodpecker
Desmond Sieburth, Devon A. DeRaad, and James M. Maley

First Record of the Pine Flycatcher (Empidonax affinis) for Arizona
and the United States

Gary H. Rosenberg and David J. Stejskal

Featured Photo: Replacement of Primaries during
Prealternate Molt in North American Larus Gulls
Peter Pyle, Amar Ayyash, and Mark B. Bartosik

WFO Scholars: The Future of Field Ornithology

Thanks to Western Birds’ Reviewers and Associate Editors

Index Daniel D. Gibson

Front cover photo by © Mark Chappell of Riverside, California: Purple Sandpiper (Calidris maritima) at Salt Creek Beach, northeast shore of the Salton Sea, Riverside County, representing a first record for California. When this photo was taken on 10 April 2016 the bird was well into first alternate plumage but showed no sign of black on the belly, as seen on the similar Rock Sandpiper (C. ptilocnemis) at this stage of molt.

Back cover “Featured Photos” by Amar Ayyash of Orland Park, Illinois: American Herring Gull (Larus argentatus smithsonianus) at Chicago, Illinois, 22 November 2015. Note the contrast between the inner five primaries, patterned as in the definitive plumage, with the outer primaries, patterned as in the second plumage cycle. The inner primaries may have been replaced during a prealternate molt.