North American Birds

VOLUME 69 NO2 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/705084

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V O L U M E 6 9 ( 2 0 1 6 ) • N U M B E R 2 293 S O U T H E R N C A L I F O R N I A Tijuana River mouth, San Diego 20 Dec (TABl) were the only 2 reported from along the coast. About 30 Eurasian Wigeons were known pres - ent at various locations scattered throughout the Region this winter. A young Mallard pho - tographed at Pico Rivera, Los Angeles 23 Dec (JFG) appeared to be a typical Mexican Duck, the first to be reported in California away from the Lower Colorado River, but few observers are on the lookout for this taxon. A Eurasian Teal at Pico Rivera 14 Dec–20 Feb (DB) was the same bird present here last year and the only one known in the Region this winter. A Tufted Duck at Goleta, Santa Barbara 17 Dec–1 Mar (WvD) was the same bird present here last winter, and another at Otay Lakes 24 Dec–8 Feb (MSa) provides the fourth record for San Diego. Three Harlequin Ducks at Cayucos, San Luis Obispo through the winter (MLS) and one at Avila Beach, San Luis Obispo 4-17 Jan (MDS) were at the s. limit of this species' range in California. Single Surf Scoters on the San Ber - nardino portion of Lake Havasu 12 Jan (LBH) and Lake Skinner, Riverside 29 Nov–5 Dec (DF), along with 4 together at S.E.S.S. (Young Rd.) 16 Dec (GMcC), were inland, where rare. A White-winged Scoter at Lake Perris, Riverside 16 Dec (RMcK), 2 Black Scoters at N.E.S.S. (Whitewater River mouth) 9 Jan (TABe), and a Long-tailed Duck at N.E.S.S. (Whitewater Riv - er mouth) 3 Jan (DRa), were also inland, these sea ducks being far less numerous than Surf Scoter in California, especially inland. South of Point Conception, only 16 White-winged Sco - ters were reported from the coast, a far cry from the numbers there in the 1970s. On the other hand, Black Scoter numbers have not declined as dramatically, with 20 found between San Simeon in San Luis Obispo and s. San Diego Bay, San Diego, but only 2 Long-tailed Ducks, with one each at Cayucos, San Luis Obispo 1 Dec (TE) and at Santa Cruz Island 13-25 Feb (CH). Three Barrow's Goldeneye at Senator Wash Reservoir, Imperial 4 Dec–3 Jan (PEL) were on the Colorado River, where regular in very small numbers, but one on Lake Silverwood, San Ber - nardino 17 Jan (SJM) was unexpected. A Red-throated Loon at Prado Regional Park 19 Dec–10 Feb (AEK), only the second found in the w. part of San Bernardino, and another on Lake Perris 13 Dec (MSc) were both well inland. Reports of Pacific Loons far inland in - cluded single birds at Lake Ming near Bakers- field, Kern 12-19 Dec (EAE), on Lake Perris 16 Dec (RMcK), and at Senator Wash Reservoir 4 Dec (PEL), along with 2 together on Warren H. Brook Reservoir, Imperial 4-16 Dec (PEL). Single Red-necked Grebes at Ventura, Ventura 3 Dec–26 Apr (BSil), at the entrance to San Di - ego Bay, San Diego 7 Jan (MSa), and dead at the Tijuana River mouth 25 Dec (MSa, *SDNHM) were the only 3 on the coast, but one at El Monte 20-30 Dec (AKL) and another on Casta - ic Lagoon, Los Angeles 21 Dec–15 Mar (DSC) were inland, where much rarer. A Manx Shearwater, now regular in small numbers off California, was off Point Bu - chon, San Luis Obispo 17 Jan (CAM). A sub- ad. Masked Booby at Dana Point, Orange 26 Jan was found dead the following day (JW, *LACM). A Blue-footed Booby seen from Point La Jolla in La Jolla, San Diego 13 Dec (PEL) was the only one reported. Multiple Brown Boobies continue off San Diego, and the presence of 17 on an oil rig platform off Huntington Beach, Orange 10 Jan (TABe), indicate numbers have moved to at least this far north; in addition, single birds were at Long Beach, Los Angeles 10 Jan (MSc), off San Pedro, Los Angeles 2-3 Feb (WM), off Port Hueneme 1-2 Jan (JBa), and off Ventura 25 Feb (JBa), along with 2 on Santa Barbara Island 23-28 Jan (JHow) and another on Anacapa Island 1 Jan (JBa). The only Reddish Egrets known n. of Orange were 2 at P.M.N.A.S. through the winter (DPe). Up to 17 Yellow-crowned Night-Herons at P.M.N.A.S. and 6 at Imperial Beach, San Diego were present through the winter (DPe, GMcC). A young Roseate Spoonbill at S.E.S.S. (Garst Rd.) 10 Jan–14 Mar (JoG) was the first in Cali - fornia since the winter of 2007-2008. A Black Vulture with Turkey Vultures moving between Morro Bay and San Luis Obispo, San Luis Obispo 13-19 Jan (BI, MLS) was believed to be the same bird frequenting this area on and off since Feb 2013. The ad. Gray Hawk pres - ent at Carpinteria since 29 Nov was last seen 2 Feb (LRB). A Swainson's Hawk near the Kern N.W.R., Kern 25 Jan (AMS) may have wintered locally, but 14 spending the night at Borrego Springs, San Diego 28-29 Jan (HC), one over Prado R.P. 8 Feb (HBK), and 12 roosting near El Centro 12 Feb (KZK) were clearly the first of the spring migrants this year. Single Zone- tailed Hawks were at Ojai, Ventura 21 Dec–25 Feb (AJS), near Camarillo 1 Jan (KO), and over Sylmar, Los Angeles 24 Dec (SDS), along with 2-3 in Orange and 8 more scattered throughout the coastal lowlands of San Diego this winter. A Rough-legged Hawk, now rare in this Region, was at Round Valley, Inyo 14 Dec (JLD). A Sandhill Crane at Nuevo, Riverside 25 Jan (BP), and what was likely the same bird at S.J.W.A. 8 Feb (JSp), along with single birds at Morro Bay 19-20 Dec (MWy) and P.M.N.A.S. 10 Jan–19 Apr (DPe), were well away from any areas of regular occurrence. American Oyster - catcher x Black Oystercatcher hybrids were on Anacapa Island 23 Feb (PAGa), the harbor at Ventura (AJS), and around Point Loma, San Di - ego (DPo) through the winter. Wintering Pacific Golden-Plovers included one at Guadalupe, Santa Barbara 23-24 Jan (CH), 6 at Seal Beach Naval Weapons Station, Orange 21 Feb (BSin), single birds at Del Mar, San Diego through 21 Mar (PEL), at Tijuana River mouth 26 Dec–23 Apr (GN, RTP), and on s. San Diego Bay 4 Feb (RTP), along with 5 on San Clemente Island 16 Feb (JTS). Wintering Mountain Plover numbers peaked at 250 at the Carrizo Plain N.M., San Luis Obispo 28 Feb (EAE) and 128 near Lakev - iew, Riverside 25 Dec (ESt); however, in the Antelope Valley of Los Angeles, this species is in trouble, with fewer than 120 counted in early Jan (F&SG), evidently the result of fallowing of many grass and alfalfa fields, along with the in - stallation of extensive solar arrays, and the same can be said for the Imperial Valley in Imperial; a single bird at n. V.A.F.B. 14 Dec (AA) was the only one found along the coast. A Solitary Sand - piper, rare in winter, was at Santee, San Diego 13-26 Dec (JSto). Reports of wintering Sander - lings on the Salton Sea, where rare at this sea- son, included single birds at the Niland Marina 28 Dec (ESt) and Salton City 2 Feb (RMcK). Marbled Murrelets were more numerous This immature Roseate Spoonbill, photographed on 25 January 2015, that remained on Morton Bay at the south end of the Salton Sea, Imperial County, between 10 January and 21 March 2015 was the first in California since early January 2008. Photograph by Brian E. Daniels. This Marbled Murrelet on Mission Bay in San Diego, San Diego County, photographed on the first day of its 1-5 December 2014 stay, was by far the southernmost of well-above-average numbers along the coast during December and January. Photograph by Anthony Mercieca.

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