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 135 of 163

N O R T H A M E R I C A N B I R D S 382 N O R T H E R N C A L I F O R N I A Tropical Kingbirds from five coastal and bayside counties included Santa Clara's first for spring at Sunnyside Municipal G.C. 20 Apr (AMR). Santa Clara's fourth Bell's Vireo visited Alviso 23 May (v.r. RGJ). Less than annual in spring away from breeding areas, a Plumbeous Vireo was at Coyote Point, San Mateo 8 May (RSTh). A flock of 5 Pinyon Jays in Burney 17 Apr (Brooke McDonald) and a flock of 3 in the Hat Creek area 3 May (Michele Swarthout) established the fifth and sixth records for Shasta. The Blue Jay in Quincy, Plumas first observed 31 Oct 2015 was last seen 9 May (Gary Rotta, CPD, Michael H. Huhndorf). Townsend's Solitaires away from areas of residency included one in Monterey, one in Santa Cruz, and 3 in Yolo. THRASHERS THROUGH WARBLERS Four out-of-range Sage Thrashers were found, with one along the coast at P.R.N.S. 27 May (ph. SNGH, TRy, Wesley Sparagon) and singles inland in Fresno, Mono, and Tulare. A Northern Mockingbird was in Day, Modoc 28 May (Bruce Mast); this species is rare in the extreme ne. cor - ner of the state. A Phainopepla at Battery God- frey 16 Apr (BFi, m.ob.) provided the fifth S.F. city record. A White Wagtail, well documented at Lake Tolowa and later at Lake Earl 10 May (Casey Ryan, ph. TKz, ph. SMcA, ADB, ph. Glenn Anderson, m.ob.), provided the third re - cord of this species for Del Norte; all have been of the Black-backed subspecies, lugens. The only Northern Waterthrush reports were of a wintering bird at the Arcata Marsh, Humboldt to 17 Apr (Mark Colwell) and a male returning for its fourth spring (fide CPD) near Lake Al - manor, Plumas 29 May (RDB, SEd, ADE). All 5 Black-and-white Warblers were in coastal coun - ties, with 3 in Santa Cruz and singles in San Mateo and Del Norte; 2 in the first half of April in Santa Cruz may have wintered or could have been early migrants. Two singing male Protho - notary Warblers at Oasis Ranch, Mono 27 May unusually early; demonstrating how odd this influx was, 2 at well-surveyed F.I. 7 May (Point Blue) provided the first spring record for the island. High counts were of 115 at Wilder Ranch S.P., Santa Cruz 18 Apr (SGe, Mary Crouser), 100+ at Half Moon Bay, San Mateo 5 May (MDeF, CHy), and up to 90 on South Ocean Beach, S.F. 1-4 May (PSar, m.ob.). Black Skimmer is scarce along the coast n. of Monterey Bay, and in n. S.F. Bay, so noteworthy records included 3 at Pigeon Point, San Mateo 30 Apr (PJM), 2 in Tomales Bay at Inverness, Marin 15 May (ph. Roger Harshaw), and 2 at the Novato Creek Marsh in Novato, Marin 24-30 May (Garrett Duncan, Kayla Putty, ph. m.ob.). One at the Ukiah W.T.P. 8 May (ph. JWB, CEV, SJS) was most unusual, be - ing so far n. and inland, and provided the first inland record for Mendocino. DOVES THROUGH FALCONS A flock of 8 Eurasian Collared-Doves joined a repositioning cruise off Marin on 11 May, illus - trating the opportunistic nature of this peripa- tetic invader. Five were still present on 12 May off Humboldt/Del Norte, with the last bird still flying about the ship in se. Alaska on 14 May (PEL). Humboldt's third Great Gray Owl con - tinued at Prairie Creek Redwoods S.P. through 13 Mar (Carol Wilson). A total of 3-6 Common Poorwills at the s. end of Mare Island, Solano 27 & 29 Mar (Myrna Hayes, RLCL) and the anecdotal report of birds having been detected at that location since 2008 (Myrna Hayes) sug - gest local breeding. However, the species was not detected anywhere in the county during the county breeding bird atlas project span - ning 2005–2010. The Region averages about two spring reports of Chimney Swift every 10 years, so two reports just this season, one of 2 birds at the Big Sur River mouth, Monterey 7 May (†BTM) and one of a single bird at Klamath Glen, Del Norte 21 May (†LuB), were especially noteworthy. Grinnell and Storer (Animal Life in the Yosemite, 1924) reported Peregrine Falcon as a resident in the Mono Basin, Mono, having observed the species there during the breeding season on 27 May 1916. After an apparent 110- year absence, this species was found nesting in the Mono Basin this year, coincidentally also on 27 May (KNN). FLYCATCHERS THROUGH THRUSHES Two Eastern Phoebes, one continuing at the S.F. Zoo, S.F., through 14 Mar (m.ob.) and one 8 km se. of Pescadero, San Mateo 13 May (RSTh), represented a typical showing. A Ver - milion Flycatcher at Natural Bridges S.B. 22 Mar (ph. Stephan Nance) provided just the third or fourth record for Santa Cruz. Five worthy reports were Sacramento's second record at C.R.P. 24 Apr (JTr), Shasta's third through fifth records, with 3 birds near Fall River Mills 25 Apr (KAb, m.ob.), one at the Redding W.T.P. 30 Apr (Boyd and Kathy Turner), and one near Fall River Mills 1 May (Boyd and Kathy Turner), and Placer's sixth record, of one at Folsom Lake 1 May (RPz). Single Lesser Black-backed Gulls were at Eureka, Humboldt 2-4 Mar (TMcK, Matt Casagrande, DPM) and the Yolo County Land - fill, Yolo, where the species has been regular in recent years, 3 Mar (ph. SCH). Eight Glaucous Gulls were reported, the latest being at F.I. 6 May (Point Blue). California's first Kelp Gull, which was first seen in coastal San Mateo and on F.I. in spring 2015, was seen again in Los Angeles in Feb 2016 and then on F.I. 26 Apr (ph. Point Blue) and in Half Moon Bay, San Mateo 30-31 May (MDeF, CHy, ph. m.ob.); the C.B.R.C. has accepted all 2015 and 2016 records as pertain - ing to the same individual. A pair of Least Terns returned to the Sac- ramento Regional W.T.P., Sacramento 23 May (Randy Price, ph. CCo), the seventh time in the past nine years that the species has nested at this site. Black Terns are scarce spring migrants w. of the C.V. This season, one at the Ukiah W.T.P. 13 May (SJS, ph. RJK, m.ob.) and pos - sibly the same bird at Lake Mendocino 14-16 May (JSL, GEC) provided the second inland record for Mendocino, and one at Piper Slough, Contra Costa 28 May (ph. Albert Linkowski) provided the first record for Bethel Island. Oth - ers included one 13 km w. of Moss Landing, Monterey 3 May (ph. Kate Spencer) and 4 at Hayward Marsh, Alameda 10-13 May (RJR). Common Terns are rare inland in spring (being much more regular in fall), so one at Bridgeport Reservoir, Mono 30 May (PJM) was noteworthy. After decades of being ultra-rare in the Region, Royal Terns have appeared in small numbers the past few years; this season, one was flying n. at Pigeon Point, San Mateo 8 Mar (RSTh). An influx of Elegant Terns along the coast from Monterey to S.F., with the first noted 10 Apr, was Black Skimmer numbers have increased in Northern California in the past 20 years, but the species is still extremely rare inland. This bird at the Ukiah Water Treatment Plant 8 May provided the first inland record for Mendocino. Photo by © Jack W. Booth Del Norte's third White Wagtail was found by Snowy Plover surveyors at the mouth of Lake Tolowa on 10 May. The bird was refound later in the day over a mile away on Lake Earl while chasers were looking for it at the original location, documenting how far these wagtails often move in a single day! Photo by © Glenn Anderson

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