North American Birds

VOLUME 70 NO1 2017

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/936087

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N O R T H A M E R I C A N B I R D S 118 S O U T H E R N C A L I F O R N I A (DLP), another was around Lake Forest/El Toro, Orange 6-15 Oct (AG, KS) and at least 3 were in coastal San Diego after 14 Sep; small numbers regularly winter along the coast of S. California. CRANES THROUGH MURRELETS Single Sandhill Cranes at Tinemaha Res. Inyo 6 Oct (T&JH), F.C.R. 27-29 Oct (JEP), Nojoqui Falls County Park, Santa Barbara 25 Oct (PTS), at Culver City, Los Angeles 28 Oct (WL) and at the Mill Creek Wetlands in Chino, San Bernardi - no 31 Oct (JK), along with up to 3 together at S.J.W.A. 8-21 Oct (CMcG), were all away from areas of regular occurrence. Single, apparently "pure" American Oystercatchers were well pho - tographed at La Jolla 7 Aug (GN) and Newport Beach, Orange 20-27 Sep (PR). At least 11 pre - sumed migrant Pacific Golden-Plovers were found along the coast 22 Aug–10 Nov, along with wintering birds returning to Del Mar, San Diego 9 Sep+ (SKB) and Imperial Beach, San Diego 27 Aug+ (RTP). Given that numbers of Mountain Plovers are declining, and the spe - cies is rare on the coast, two at Oceano, San Luis Obispo 2 Nov (SS), single birds at Arroyo Laguna, San Luis Obispo 10-12 Nov (WE) and near Port Hueneme, Ventura 31 Oct (GJ), three at Silverstrand, Ventura 11-12 Oct (DBa), and single birds at Santa Fe Dam, Los Angeles 26 Oct (JBr) and on Mission Bay in San Diego, San Di - ego 16 Oct (GNu) were of note; in addition, one photographed at F.C.R. 26 Aug (SHS) was early and at an unexpected location. Over 50 Solitary Sandpipers found 2 Aug–5 Oct, with most along the coast, was more than usual. Although a regular migrant through ex - treme w. San Bernardino, a Whimbrel on the San Bernardino side of L. Havasu 1 Aug (LBH) was noteworthy. A Black Turnstone, rare in - land, especially so in fall, was at Lancaster, Los Angeles 22 Aug (JM) and another was at N.E.S.S. (Salton Sea Rec Area) 16 Sep (RMcK). A Red Knot at P.P. 6-9 Aug (KR) and another at L. Perris, Riverside 25-26 Sep (RMcK) were the only two reported inland away from the Salton Sea. Seven Ruffs were reported, with single birds inland at Rosamond L., Los Ange - les 15 Oct (JSF), Ontario, San Bernardino 16-29 Aug (MW), and Mill Creek Wetlands in Chino 24 Nov (TAB). Individuals were detected along the coast at Santa Maria, Santa Barbara 24-29 Sep (DoP), Huntington Beach, Orange 20 Oct (BL), the Tijuana R. Valley, San Diego 10-11 Oct (GMcC) and at the nearby Otay Mesa 21-31 Oct (PEL). Single Sharp-tailed Sandpipers were at P.M.N.A.S. 11 Sep (DPe) and at the adjacent V.C.G.P. 16 Sep (LSa). Away from the Salton Sea, up to 6 Sanderlings were at Kramer Jct. San Bernardino 11-20 Sep (CAM) and another was at Harper Dry L., San Bernardino 20 Sep (SB); 40-60 at the Niland Marina, Imperial 13 were all much closer to shore, where scarcer. A Magnificent Frigatebird off Point Loma 25 Aug (JJ) was the only one reported. A Masked/Nazca Booby seen from shore at Ocean Beach, San Di - ego 20 Oct (CAM) was the same bird picked up in Newport, Oregon and flown to Los Angeles, where rehabilitated, banded, and released off San Pedro on 9 Oct (KLG); some characters suggest it was a Nazca, but genetic results are still awaited. Single sub-adult Masked/Nazca Boobies were about 80 km w. of San Diego over Los Angeles waters 31 Aug (PD), 10 km wsw. Of Point Loma 1 Sep (SS), on Sutil Rock at Santa Barbara I. 27 Sep–26 Oct (NAL), and in the harbor at Oceans - ide 30 Oct (MM). A Blue-footed Booby seen from shore at Ocean Beach 19 Oct (KR) was the only one reported. Numbers of Brown Boobies fre - quenting the ocean waters off S. California have "exploded" as illustrated by 50 counted from shore at Point La Jolla in La Jolla, San Diego 3 Nov (GNu), 48 at Anacapa I. 27-29 Nov (DK-B), and an incredible 170 counted on Sutil Rock at Santa Barbara I. 24 Oct (NAL). In addition to the two Red-footed Boobies reported in July, single birds were at Newport Pier, Orange 2 Sep (SK; *LACM) and Redondo Beach, Los Angeles 13 Sep (SK; *LACM), one landed on a boat 25 km se. of Catalina I. 13 Sep (AKB) and stayed aboard into Dana Point, Orange, and a fourth was at Platform Eureka 15 km sw. of Huntington Beach, Orange 19 Sep (TAB). A Neotropic Cormorant was in the coastal lowlands at Lake O'Neil at Camp Pend - leton, San Diego 30 Sep–26 Nov (LG), and indi- viduals remained at the Salton Sink into Novem- ber, with the latest at N.E.S.S. (Salton Sea State Recreation Area) 4 Dec (RMcK); in addition, one was on the Colorado R. at Parker Dam, San Ber - nardino 27 Nov (DK). A Little Blue Heron at the Santa Ynez R. es - tuary, Santa Barbara 6 Sep (NAL) was the only one found n. of San Diego. Up to two Reddish Egrets at P.M.N.A.S. through the fall (DPe) were the only ones known on the coast n. of Orange; one at Desert Shores on the Salton Sea, Impe - rial 23 Sep (RMcK) was the only one inland. Yellow-crowned Night-Herons now appear well established as permanent residents along the coast in San Diego and Ventura, with up to 20 at P.M.N.A.S. through the period (MAH, DPe); elsewhere, a sub-adult was at San Pedro 12 Nov–23 Dec (BT), and up to 5 were frequent - ing Carpinteria, Santa Barbara 1 Aug–14 Nov (PAG). A Black Vulture was around Solvang, Santa Barbara 30-31 Aug (WvanD). The only Harris's Hawks known in California were one near Borrego Springs, San Diego 15 Sep (RT), and another near El Centro, Imperial 21-25 Oct (KZK). At least 12 migrant Broad-winged Hawks were reported from various locations scattered through the Region 18 Sep–27 Oct. A returning Zone-tailed Hawk was in Ojai, Ventura 6-27 Nov tura 4 Nov (DPe) and another off Dana Point, Orange 19 Sep (TAB) were the only two re - ported. Three Wilson's Storm-Petrels, scarce in S. California waters, were about 65 km off Pt. Buchon, 22 Sep (JW) and another over the Cortez Bank well off Ventura 10 Sep (TMcG). Two Townsend's Storm-Petrels, now recognized as a separate species from Leach's and believed identifiable at sea, 100 km SSW of Santa Rosa I. 9 Sep (DPe) were the northernmost this year; this taxon regularly ranges n. to the waters off S. California in late summer, with a specimen from 24 km SW of San Miguel I. dated 20 Aug 1938 (at the Museum of Vertebrate Zoology in Berkeley) providing the northernmost record. Two Wedge-rumped Storm-Petrels photo - graphed over the Santa Lucia Bank 62 km wsw. of Pt. Buchon, 16 Sep (BLS) provided the sev - enth record for S. California. Numbers of Least Storm-Petrels off S. California increased after an unusually early arrival off San Diego in June, with about 2800 at the 30-Mile Bank off Los Angeles 11 Oct (PEL) and 200+ over the Santa Cruz Basin off Ventura 10 Oct (DPe), with 6 along with other storm-petrels 65 km off Pt. Buchon 22 Sep (JW) being the northernmost. TROPICBIRDS THROUGH HAWKS Three Red-billed Tropicbirds ssw. of San Miguel I. 9 Sep (DPe) were over open ocean waters where believed regular at this time of year, but three in the Santa Barbara Channel, Ventura/ Santa Barbara on 22 Aug (NAL), along with at least two more there on various dates between 4-20 Sep (JCS, JBa), one seen from shore in Car - diff, San Diego 14 Sep (MSa), and single birds 16 km off Oceanside, San Diego 28 Sep (BM) and 15 km sw. of Point Loma, San Diego 30 Sep (DPo) This, the first Groove-billed Ani in California in seventeen years, was at the Coso Rest Stop, an isolated patch of greenery in southern Inyo County on 27 October 2015. Photo by © Tom Heindel.

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