North American Birds

VOLUME 69 NO3 2016

A Quarterly Journal of Ornithological Record Published by the American Birding Association. The mission of the journal is to provide a complete overview of the changing panorama of our continent’s birdlife.

Issue link: http://nab.aba.org/i/778845

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V O L U M E 6 9 ( 2 0 1 6 ) • N U M B E R S 3 / 4 489 N O R T H E R N C A L I F O R N I A –––––––––––––––––––––––––––––––––––––– Michael M. Rogers ( waterfowl to quail, herons to shore - birds ), 499 Novato Avenue, Sunnyvale, California 94086 (m.m.rogers@comcast.net) Jeff N. Davis ( doves to thrushes ), 11238 N. Via Trevisio Way, Fresno, California 93730 (jdavis@colibri-ecology.com) Ed Pandolfino ( thrashers to finches ), 1328 49th Street, Sacramento, California 95819 (erpfromca@aol.com) Stephen C. Rottenborn ( loons to frigatebirds, larids to alcids ), 983 University Avenue, Building D, Los Gatos, California 95032 (srottenborn@harveyecology.com) A. Rudesill (Sonoma), Jeff Seay (Kings), Daniel Singer, Mark Stacy, John C. Sterling (Modoc, Alpine, Calaveras, and Yolo), Tim Steurer (El Dorado and Amador), Gary J. Strachan, Emilie Strauss, Steve J. Stump, David Styer, Brian L. Sullivan, Steven D. Summers (Tulare), Ron - ald S. Thorn, Jim Tietz (F.I.), Steve Umland (Tuolumne), Kent Van Vuren (Merced), Jerry R. White (Lake), Gary Woods, David G. Yee, Bob & Carol Yutzy (Shasta). Many more observers are not specifically cited; all are appreciated. n McCreedy, Tristan McKee, Peter J. Metropulos (San Mateo), Dominik Mosur (San Francisco), Mary Muchowski, Dan Nelson, Kristie N. Nel - son (Mono), Chet Ogan, Frances Oliver (San Joaquin), Ed Pandolfino (Placer), Ryan Phillips, Linda Pittman, Gary W. Potter (Fresno), Rob - ert C. Power, Harold M. Reeve, Robert J. Rich- mond (Alameda), Alex M. Rinkert, Don Rob- erson (Monterey), Michael M. Rogers (MMR), Michael Rogner (MRg), Diane Rose, Steve Rose, Stephen C. Rottenborn, James Rowoth, Ruth Southern California lowed a more easterly route that placed them on the e. side of the Sierra Nevada. The latest of the wintering Eurasian Wigeons were single birds at Kern N.W.R., Kern through 18 Apr (AMS), the S.J.W.A. through 26 Apr (CMcG), and at Hansen Dam, Los Angeles through 29 Apr (JR). Long-staying Harlequin Ducks at Estero Bluffs S.P., San Luis Obispo through 30 May (TME) and at Avila Beach, San Luis Obispo through 16 May (JCop) were expected to re - main through the summer. Single Surf Sco- ters at Borrego Springs 8 Apr (PA) and on the Salton Sea at Salt Creek 23 Apr (RMcK) and a White-winged Scoter at Lancaster, Los Angeles 24 Apr–4 May (CH) were inland, where rare, but much rarer was a Black Scoter at Borrego Springs 8 Mar (PA). In addition, the total of 15 Black Scoters along the coast of San Luis Obispo was far more than expected, with the latest be - ing one near Cayucos 25-30 May (TME). A Long-tailed Duck was inland at Desert Center, Riverside 13-14 Mar (BS), and another at Kern N.W.R. 14-25 Mar (BO'C) was only the fourth to be found in Kern; on the coast, single birds were at Morro Bay, San Luis Obispo 21 Mar–20 May (JM) and Pismo Beach, San Luis Obispo 2-9 May (P&JC). A Sooty Grouse at Silver Canyon 10 Apr (SLS) was in the White Mountains, Inyo, where few have been reported in recent years. Single Pacific Loons on Hesperia Lake, San Bernardino 2-22 May (MWo), at N.E.S.S. 10 (CMcG) & 29 Mar (CMcG), at Borrego Springs 23 Apr–1 May (WTH), and at Fig Lagoon 11 Apr (GMcC) were all well inland, where rare. A Red-necked Grebe on the coast at P.M.N.A.S. 20 Mar (DPe) was the only one reported. A Laysan Albatross at the 9-Mile Bank off San Diego 3 & 16 May (DPo) was only the third live bird ever record - ed in San Diego waters. A Laysan Albatross was captured well inland at a construction site in Palm Desert, Riverside 20 Mar and taken to San Pedro for treatment and release. Noteworthy procellariids reported by PEL from cruise- Guy McCaskie Kimball L. Garrett –––––––––––––––––––––––––––––––––––––– SPRING –––––––––––––––––––––––––––––––––––––– A ridge of high pressure ruled southern California in March, with temperatures well above normal and precipitation well below normal away from the southeast - ern deserts. Temperatures were only slightly above normal in April, but rainfall was still well below average. By May, temperatures cooled to below average, and although there was above-average rainfall in much of the Region that month, we still headed into sum - mer having experienced a fourth consecutive exceptionally dry rainy season. Offshore, sea surface temperatures were above normal and continuing to warm. Avian highlights were few this season, with a generally lackluster migration and spring vagrant season. Most noteworthy was a Nazca Booby at Anacapa Is - land in May (only the third to be found north of Mexico), and three Common Black Hawks on the southern deserts in March and April. Lesser but still significant rarities included a Cape May Warbler, a Cassin's Sparrow, and an unprecedented early April Mississippi Kite. Abbreviations (both reports): C.L. (China Lake Naval Air Weapons Station, extreme ne. Kern); E.A.F.B. (Edwards A.F.B., se. Kern); F.C.R. (Furnace Creek Ranch, Death Valley N.P., Inyo); G.H.P. (Galileo Hill Park in ex - treme e. Kern); N.E.S.S. (n. end of the Salton Sea, Riverside); P.M.N.A.S. (Point Mugu Naval Air Station, Ventura); P.P. (Piute Ponds on Ed - wards A.F.B., ne. Los Angeles); S.E.S.S. (s. end of the Salton Sea, Imperial); S.F.K.R.P. (South Fork Kern River Preserve near Weldon, Kern); S.J.W.A. (San Jacinto Wildlife Area near Lakev - iew, Riverside); V.C.G.P. (Ventura County Game Preserve near Point Mugu Naval Air Station, Ventura). Because most rarities in s. Califor - nia are seen by multiple observers, only the observer(s) initially finding and/or identifying the bird are included. Documentation for spe - cies on the California Bird Records Commit- tee review list (see www.californiabirds.org) is forwarded to the committee and archived at the Western Foundation of Vertebrate Zoology in Camarillo. WATERFOWL THROUGH HERONS Each spring, migrant waterbirds wintering in the Gulf of California follow a non-stop route that takes them northwestward across the Anza Borrego Desert and the lower parts of the Laguna Mountains to the Pacific, probably across Los Angeles, as suggested by 40 Brant flying westward over El Monte 12 Apr (LSc), stopping only when forced to the ground by storms. Flocks of 45 Brant on Fig Lagoon near Seeley, Imperial 11 Apr (GMcC) and 15 on Lake Henshaw, San Diego 21 Mar (RA), along with up to 10 together at multiple lo - cations at the Salton Sink, Imperial/Riverside, and the general area around Borrego Springs, San Diego between 28 Mar and 20 May, were all such storm-grounded birds. However, 4 at Bishop, Inyo 21 May (JJB) had erroneously fol -

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