eWestern Birds

The Quarterly Journal of Western Field Ornithologists

Vol. 47, No. 3
August 2016
Western Field Ornithologists

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Contents
MAIN ARTICLES

Numbers of Terns Breeding Inland in California: Trends
or Tribulations?
W. David Shuford, Kristin A. Sesser, Khara M. Strum, David B. Haines, and Daniel A. Skalos

A Reassessment of the Distribution of Virginia’s Warbler in the Black Hills of South Dakota
David L. Swanson, Mark D. Dixon, and Jeffrey S. Palmer

NOTES

Renesting and Probable Double-Brooding by Northern Saw-whet Owls: A Response to Prey Abundance?
Douglas Vaughan

Northern Harriers Nesting in Sagebrush Steppe in Central Wyoming
Lance Morrow and Jill Morrow

Collision of a Red-tailed Hawk with an Artificial Duck-Nesting Structure
Chang-Yong Choi and Xiangming Xiao

Apparent Breeding by Anna’s Hummingbirds in Idaho
Carl Rudeen and Fred Bassett

Featured Photo: Molts and Plumages in the Long-tailed and Other Jaegers: An “Alternate” Explanation for Nonbreeding Plumages?
Peter Pyle and Martin Reid

Front cover photo by © Martin Meyers of Truckee, California: Black Tern (Chlidonias niger), Sierra Valley, Plumas County, California, 8 June 2006. Numbers of the Black Tern nesting in inland northern California, and of the Forster’s (Sterna forsteri) and Caspian (Hydroprogne caspia) terns as well, have decreased substantially during the drought-stricken early years of the 21st century, as detailed in this issue of Western Birds by W. David Shuford, Kristin A. Sesser, Khara M. Strum, David B. Haines, and Daniel A. Skalos.

Back cover: “Featured Photos” by Martin Reid of San Antonio, Texas: Long-tailed Jaegers (Stercorarius longicaudus) 5 km off Arica, Chile, 2 December 1993, showing variation in the plumage of nonbreeding adults and of a bird in its second winter (upper photo, top image). Note the barred central rectrix in the lower photo. In this issue of Western Birds, Peter Pyle and Martin Reid unravel the complex and hitherto inadequately understood cycles of molt in the jaegers.