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.

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Page 144 of 163

V O L U M E 7 0 ( 2 0 1 9 ) • N U M B E R S 3 / 4 391 Baja California Peninsula 3 Apr (ph. VAP). Regional American Golden- Plovers are most often found in spring and in easternmost areas, i.e., southern Baja Califor - nia Sur. One at Nopoló 8 Apr (ph. TH) was no exception. An impressive concentration of 22 Wandering Tattlers was at Conquista Agraria, north of Todos Santos on 17 Apr (ph. TPB). A South Polar Skua at Laguna San Ignacio 9 Mar (DMP, DG) was unusual for date and place. Sa - bine's Gull was also found early with two on 6 Mar (north of Isla San Martín, ph. DMP; near Todos Santos, RC et al.) and two west of Isla Ce - dros 11 Mar (DMP). Franklin's Gulls were near Todos Santos 17 Apr (4; ph. TPB) and at the Ensenada dump 10 May (ph. DRS). DOVES THROUGH ORIOLES Ruddy Ground-Dove was first found in Baja California in 2001, but two at the Mexicali zoo 7 Apr (†GM) were only the fifth and sixth to be found away from Bahía de los Ángeles. As many as 3 Groove-billed Anis remained at Estero San José through the period. A Long-eared Owl at Isla San Marcos, off Santa Rosalía 5 Apr (ph. RA et al.) was an outstanding rarity for Baja Califor - nia Sur. The only previous record is from near Loreto 12 Feb 1940 (Monographs in Field Orni - thology 3: 126). Almost as rare was a Hammond's Flycatcher at La Laguna 6 Mar (ph. PCR), only the fifth to be reported in Baja California Sur. Plumbeous Vireo is rarely seen in Baja California in spring so one at El Rosario 6 Apr (MJB) was noteworthy. The last report of wintering Bank Swallows at Estero San José was of 10 on 13 Apr (ph. ST). A Black-and-white Warbler at the Mex - icali zoo 7 Apr (GM) had presumably wintered locally, as had 2 Virginia's Warblers at Loreto 21 Apr (ph. TH). Lark Buntings away from expect - ed locations included six at Isla Cedros 7 Mar (DMP, DG), 15 at Isla Natividad 19 Mar (MAH), five at Islas San Benito 20 Mar (MAH), and one at Cataviña 6 Apr (MJB). A singing Northern Cardinal on the Sonora border at Ejido Encinas Johnson 27 May (JJBR) was one of few ever re - corded in the northeast portion of the Region. Great-tailed Grackle is strongly averse to cross - ing water so one wonders if the bird at Islas San Richard A. Erickson Roberto Carmona Gorgonio Ruiz-Campos –––––––––––––––––––––––––––––––––––––– SPRING 2016 –––––––––––––––––––––––––––––––––––––– I t was a quiet season with little coverage, but the Pacific islands received some atten - tion. The few real highlights were all in Baja California Sur: American Golden-Plover, South Polar Skua, Groove-billed Ani, Long-eared Owl, Hammond's Flycatcher, and Virginia's Warbler. LOONS THROUGH GULLS Interior Common Loons were at Presa Rodrí- guez, Tijuana 3 May (RAE) and the Cerro Prieto geothermal ponds 29 Apr (ACF) and 14 May (BCS). Regular monitoring of the Ensenada dump resulted in interesting raptor observa - tions: Bald Eagle 27 Apr (ph. ESP) and Broad- winged Hawk 6 Apr (MAMD, ph. DRS, ESP). The most interesting bird, a possible Short- tailed Hawk phone-photographed 12 Apr (ph. MAMD), could not be confirmed. In the Cape District, Broad-winged Hawks were at Mira - flores 30 Mar (PA) and San Antonio de la Sierra SA We reviewed reports of two expeditions that made important observations on and around several islands off the Pacific coast of Baja California and northern Baja Cali - fornia Sur. David Pereksta et al. visited Todos Santos, Cedros, and San Benito 6-11 Mar and Mark Holmgren et al. visited Todos Santos, San Jerónimo, Natividad, San Benito, Cedros, and San Martín 17-24 Mar. To our knowledge, the following represented first island records: 8 Western Grebes and 3 Black Skimmers at San Jerónimo 18 Mar; 6 Brown Boobies at San Martín 24 Mar; a Little Blue Heron and 2 Eurasian Collared-Doves at Cedros 8 Mar followed by 25 collared-doves and an Ash-throated Flycatcher there 22-23 Mar; 2 Herring Gulls and a Loggerhead Shrike at Natividad 19 Mar; and 1 Eurasian Collared-Dove at San Benito 11 Mar followed by 3 collared-doves, 2 Violet-green Swallows, and 2 Brewer's Sparrows 20 Mar. Fif - teen Reddish Egrets at Todos Santos 17 Mar were where nesting was first discovered in 1999. This American Golden-Plover at Nopoló, Baja California Sur 8 April was presumably about halfway through its long spring migration. Photo by © Tom Haglund Several early Sabine's Gulls in the Baja California Peninsula Re - gion included this bird onshore at Todos Santos, Baja California Sur 6 Mar 2016. Photo by © David Ismael Carmona Rivera This Hammond's Flycatcher was at La Laguna 6 March 2016. Like two of the previous four Baja California Sur records, this one was believed to be wintering in the Sierra de La Laguna. Photo by © Pamela C. Rasmussen This Virginia's Warbler was one of two at Loreto 21 April 2016. Baja California Sur records are about evenly divided between fall migrants on the Vizcaíno Peninsula and winter birds in the Cape District. Photo by © Tom Haglund

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