North American Birds

VOLUME 70 NO3-NO4 2019

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/1115839

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N O R T H A M E R I C A N B I R D S 388 S O U T H E R N C A L I F O R N I A Diego 15-16 Jul (SES), P.P. 19 Jul (KR) and Niland, Imperial 20 Jul (GMcC). An Upland Sandpiper in Ridgecrest 9 Jun (AH) was only the second recorded in Kern, and by far the latest of the spring vagrants known in Cali - fornia. A Black Turnstone, unexpected inland, especially so in late summer and fall, was at S.E.S.S. (Obsidian Butte) 29 Jun (GMcC). The only Ruff reported was inland at P.P. 20-24 Jul (KR). A Stilt Sandpiper near Santa Maria, Santa Barbara 8 Jul (WTF) was on the coast where rare. A Curlew Sandpiper, a casual va - grant to California, was at the San Diego R. mouth 10 Jul (JBr). A Red-necked Stint at Estero Bluffs S.P. 30 Jun (TME) provides the second record for San Luis Obispo. Two Dunlin in alternate-plumage on south San Diego Bay 1-2 Jul (PEL) were most unusual since few have been recorded in Southern California during mid-June through August. Two Baird's Sandpipers in Carpinteria 26 Jul (ECu) were the earliest of the fall migrants this year. Five adult Semipalmated Sandpipers were report - ed, with one each at the Santa Ynez R. mouth, Santa Barbara 3 Jul (NAL), on the Los Angeles R. in Long Beach, Los Angeles 17-21 Jul (DB), at S.E.S.S. (Lack & Lindsey) 20 Jul (GMcC), in Cayucos, San Luis Obispo 21 Jul (JND) and on the Rio Hondo in El Monte, Los Angeles 22-23 Jul (AKL), while two near Santa Maria 25-26 Jul (WTF) and another in Goleta 31 Jul (NAL) were the earliest of the juveniles. Three Western Sandpipers at N.E.S.S. (Ave 81) 15 Jun (RMcK) were unusually early fall migrants. In addition, the arrival dates for some juveniles of the more northern nesting shorebirds, such as a Greater Yellowlegs on San Diego Bay 18 Jul (PEL), Least and West - ern Sandpipers in San Diego 17 and 18 Jul (GN and PEL), suggesting earlier than normal nesting to the north. Egret at Lake O'Neil at Camp Pendleton, San Diego 31 Jul (SB * SDNHM) was a short dis - tance from the coast and suspected to have hatched somewhere nearby – nesting has not yet been documented in California; another hatch-year Reddish Egret at S.E.S.S. (Young Rd) 31 Jul-27 Aug (GMcC) was inland where much rarer than on the coast. At least one sub-adult Yellow-crowned Night-Heron around Playa del Rey, Los Angeles 1 Jul-3 Sep (DSt), and singles in Carpinteria 11 Jul-11 Aug (LE) AND 3 Sep (LE), and Bolsa Chica, Orange 23 Jul-31 Oct (RoS) were away from the areas around San Diego and P.M.N.A.S. where now resident. Up to two Glossy Ibis were in the Riverside portion of the Prado Ba - sin 14-19 Jul (JEP). RAPTORS THROUGH MURRELETS A pair of Bald Eagles hatching at least one chick at the San Gabriel Reservoir in the San Gabriel Mountains Apr-Jun (KLG) appears to provide the first mainland nesting in Los Angeles since the 1950's. A pair of Swainson's Hawks that successfully fledged two young near Cuyama in July (DMC) established the first breeding record in Santa Barbara since 1898; in addition, one at Barrett Lake, San Di - ego 9 Jun (DDiT) and another at S.E.S.S. (Ref- uge HQ), 29 Jun (GMcC) were in areas where unexpected in June. Zone-tailed Hawks suc - cessfully nested in the Mid Hills and Granite Mountains of the Mojave National Preserve in eastern San Bernardino (PU, TM); in addition, one was present at the P.V.E.R throughout the period (JT), and an immature in Lone Pine, Inyo 2-22 Jul (RDK) was unusually far north. A Ridgway's Rail at the Ballona Freshwater Marsh in Playa del Rey 12-26 Jun (JCo) was well away from the nearest area where resident. A Sora in Oceanside 30 Jun (GS) was unexpected since nesting has not been documented in San Diego in more than 60 years, and fall migrants are not expected in the coastal lowlands be - fore August. However, up to three at P.P. 6-31 Jul (KLG), one at the Prado Basin 18 and 21 Jul (JEP), and another in San Ber - nardino 27 Jul (TAB) were believed to be early fall migrants – we still have much to learn about Soras in Southern California. Single American Golden-Plovers in San Diego 13 Jun (ECo) and at Camp Pendle - ton 16 Jun-5 Jul (MPB) were either lost spring migrants or failed breeders, but one in Chula Vista, San Diego 19-20 Jul (RTP) is best considered an early fall mi - grant. A Pacific Golden-Plover in Goleta 11 Jul (SF) was likely an exceptionally early southbound migrant. The earliest of the fall Solitary Sandpipers were in San Diego 12 Jun (DPo) and 5 km off Newport Beach 18 Jun (MG). The presence of as many as 30,000 Black-vented Shearwaters off San Diego early in July (SW, PEL, JMcM) suggests nesting failures to the south. The only Least Storm-Petrel was one caught on Santa Bar - bara I. 1 Jun (JH), where the species is not known to nest. A Red-billed Tropicbird 43 km west of Point Loma, San Diego 12 Jun (DPo) was the only one reported. The only Wood Stork to reach California this year was one at S.E.S.S. (Hazard Unit) 22 Jun (ChS). Single immature Magnificent Frigatebirds were at Pt. Dume, Los Angeles 21 Jun (CyS), over Point Loma 25 Jun (NC), at La Jolla, San Diego 28 Jun (PEL), at the entrance to Mission Bay, San Diego 10 Jul (CE) and at Dana Point, Orange 13 Jul (MB), two were over Ventura 18 Jun (BH) with one still present 21 Jun (JH), and two more were over Isla Vista, Santa Barbara 31 Jul (JCh). Along with the recent drop in ocean temperatures along our coast follow - ing a strong warm period, numbers of Brown Boobies in Southern California waters have dropped substantially. An adult Little Blue Heron at Harper Dry Lake 8 Jul (BS) provides the fourth record for San Bernardino. Single Reddish Egrets at Point Fermin, Los Angeles 4 Jul (LS), Malibu, Los Angeles 30 Jul (FG), in Carpinteria, Santa Bar - bara 14-31 Jul (LB) with two there 22 Jul (LB) and a fifth on Morro Bay 18 Jul (TME) then at nearby Oso Flaco Lake, San Luis Obispo 27-31 Jul+ (MLS), along with a long-staying bird at P.M.N.A.S. through the period (AJS), were all north of areas of regular occurrence in coastal San Diego and Orange. A hatch-year Reddish Unexpected was this Jouanin's Petrel caught on Santa Barbara Island by research biologists banding storm-petrels at night on 1 June which provides the first record for North America. Photo by © Jim Howard This adult American Golden-Plover at the Sweetwater Marsh National Wildlife Refuge in Chula Vista, San Diego on 19 July was believed to be an early fall migrant. Photo by © Lea Squires

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