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.

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Page 113 of 139

N O R T H A M E R I C A N B I R D S 288 mento record; ph. GEw, ph. CrS, m.ob.), Marti- nez, Contra Costa 1 Jan (Jeff Hoppes, Catherine Spaulding et al.), and Miller/Knox R.S., Contra Costa 8 Feb (LKh, ph. m.ob.). Providing one of few records for Merced, an ad. male Barrow's Goldeneye was at O'Neill Forebay 9 Feb (ph. KVV). An apparent Hooded Merganser x Buf - flehead was at Crescent City Harbor, Del Norte 14-28 Feb (Jeff Harding, ph. Julio Morelo, Sky Lloyd). Several Red-breasted Mergansers were again found far inland, with singles near Truck - ee, Nevada 13 Dec (MMy), at Stampede Reser- voir 27-29 Dec (second record for Sierra; SRs, DRs, JSL, JLx), at Thermalito Forebay, Butte 1 Jan (Andy Tomaselli), and at Lake-of-the-Pines, Nevada 10-23 Jan (KSp, m.ob.). Eight more inland Red-breasted Mergansers were reported closer to the coast in Lake, Napa, Yolo, Sacra - mento, and San Joaquin through 17 Feb (m.ob.). Among 9 Red-throated Loons and 4 Pacific Loons inland, the most noteworthy were Mer - ced's fourth Red-throated at O'Neill Forebay 14 Jan (ph. KVV) and a Pacific on Crowley Lake, Mono on the late date of 20 Dec (KWe). A count of 8000 southbound Pacifics at Ocean Beach, S.F. 2 Jan (RyT) signified a late migrant push. More difficult to explain was the sudden appearance of 800 Pied-billed Grebes at Lake Earl, Del Norte 15 Jan (RbF, RHw), as they had not been present the previous day. This count also bests our previous record of 560. A Red- necked Grebe at Stampede Reservoir 26 Dec–18 Jan (Tim Lenz, ph. CPD, m.ob.) was a first for Sierra. Laysan Albatrosses are rarely seen from shore, so one at Point Pinos, Monterey 17-18 Dec (†BLS, †DR, CSc, RC et al.), accompanying Black-footed Albatrosses at fishing boats, was re - markable. Similarly, shearwaters seldom venture far inside S.F. Bay, making a Sooty/Short-tailed Shearwater seen from Alameda, Alameda 3 Dec (RJR) particularly noteworthy. Fall's incursion of Black-vented Shearwaters persisted. The high count was of 10,700 from Año Nuevo Point, San Mateo to Waddell Creek S.B., Santa Cruz 30 Dec (PJM). Even more unusual were the num - bers farther north. Up to 17 seen from Ocean Beach 30 Dec+ (PP, HuC, m.ob.) were the first seen from mainland S.F. in more than a decade, and counts of 525 at Bodega Head, Sonoma 4-9 Jan (DN, ScC) and 700+ at Gualala, Mendocino 2 Jan (JRW) were exceptional for these counties. Humboldt records included 2 off Humboldt Bay 4 Jan (†RbF, †JCS) and 3 there 8 Jan (JuB, Devin Bosler), and one made it as far n. as the Klam - ath River mouth, Del Norte 10 Jan (†LuB). A Blue-footed Booby at Terrace Point 10 Feb (†AJ) provided the only Santa Cruz record outside the 2013 invasion. The Brown Booby parade that began in fall continued. Individuals of all ages and sexes were recorded at F.I. through the pe - riod, with a high of 11 on 23 Feb (Point Blue) ted without documentation are not published. Documentation of C.B.R.C. review species will be forwarded to Tom Benson, Secretary, secre - WATERFOWL THROUGH PELICANS Two Brant were deep inside S.F. Bay at H.R.S. 1 Feb (RJR). This species is more regular farther n. in the Bay at Brooks Island, Contra Costa, but a tally of 110+ there 8 Feb (Tony Brake) was ex - ceptional. Trumpeter Swans were well reported, with an ad. and a juv. at the Chico W.T.P., Butte 10-24 Jan (ph. KnS, ph. MRg, ph. Bruce Mast), perhaps the same 2 birds later along Pennington Rd., Sutter 24 Jan (ph. Bruce Mast), and 6 be - low Fall River Cemetery (third Shasta record; ph. DMr). Three Tundra Swans at Bass Lake 13 Feb (Nina Jones) provided only the fourth record for Madera. The only Bewick's Swan reported was near Nelson, Butte 14 Dec (JHS). The returning Falcated Duck continued at Colusa N.W.R., Colusa through 17 Feb (Pat Bachetti). Blue-winged Teal were numerous at Bridgeway Island Pond, Yolo throughout the season, and 84 carefully counted 25 Jan was a very high tally for the Region (Kirk Swenson). Eurasian Teal were found at Arcata Marsh, Humboldt 23 Dec (Deven Karmmerichs-Berke), Ferndale Bottoms, Humboldt 19-27 Feb (CDu, RbF, m.ob.), C.R.P. 29 Jan (ph. Cory Gregory), and Pescadero Marsh, San Mateo 4 Feb (Donna Pomeroy). Male Tufted Ducks were reported from Lake Earl, Del Norte 14 Jan (JLD, †WEH, Dan Tankersly), Stafford Lake, Marin 20 Jan–27 Feb (DSg, ph. Alex Merritt, m.ob.), Lake Hen - nessey, Napa 30 Jan–21 Mar (Alex Greene, ph. DeH, DvH, m.ob.), and Modesto W.T.P. 4 Jan (second for Stanislaus; ph. JHG). The 2 male White-winged Scoters contin - ued at Fall River Lake, Shasta through 22 Dec (ph. B&CY), with one remaining through 5 Jan (Michael & Muriel Plank). The long-staying fe - male White-winged Scoter at Alviso, Santa Clara was last seen 18 Dec (MMR). The Richmond, Contra Costa Black Scoter was last reported 27 Jan (Albert Linkowski). The find of the season was an ad. male Common Scoter at Crescent City Harbor, Del Norte 25 Jan–13 Feb (ph. Bill Bouton, ph. m.ob.). This bird provided the first North American record outside of Greenland and was seen by hundreds of people who made the trek to the nw. corner of our Region. Besides the Truckee, Nevada Long-tailed Duck that con - tinued through 9 Dec (Bill Frey), 3 others were found well inland: singles at Eastman Lake, Shasta 17 Dec (fide Frank Sanderson), Black Butte Forebay, Tehama 4-7 Jan (ph. MRg, m.ob.), and n. Lake Tahoe, Placer 7-14 Feb (ScD, WRi, RPz). Other notable Long-taileds closer to the coast included singles at Benicia, Solano (RMu), American River Parkway 31 Dec (third Sacra - Ed Pandolfino Stephen C. Rottenborn Michael M. Rogers Jeff N. Davis –––––––––––––––––––––––––––––––––––––– W arm sea surface temperatures con- tinued from fall, reducing nearshore ocean productivity. This may have resulted in the presence of starving Brown Peli - cans around Monterey Bay and a large die-off of Cassin's Auklets all along the coast. These warm waters were certainly responsible for high Black-vented Shearwater numbers; late-linger - ing Heermann's Gulls, Brown Pelicans, and El- egant Terns; the continued push of Brown Boo- bies; and the largest incursion of Royal Terns in recent times. Warm water offshore gave us at least a glim - mer of hope for relief from California's lengthy drought, and December rainfall was above aver - age. However, in January, a month that typically supplies more than a fifth of our annual total, most of the Region saw not a drop of rain. Sub- normal precipitation in February assured us of another year of drought. The highlight of the season was an adult male Common Scoter, a first for North America outside of Greenland. A Rustic Bunting stayed through the period and provided the state with its fifth record. The irruptions first noted in fall of Band-tailed Pigeons, Lewis's Woodpeckers, Steller's Jays, and Varied Thrushes into areas where they are generally uncommon or rare continued through winter (see S.A.). Abbreviations: C.B.R.C. (California B.R.C.); C.R.P. (Cosumnes River Preserve, Sacramento); C.V. (Central Valley); F.I. (Southeast Farallon Island, San Francisco); H.R.S. (Hayward R.S., Alameda); Point Blue (Point Blue Conserva - tion Science); P.R.N.S. (Point Reyes National Seashore, Marin), S.F. (San Francisco, not State Forest); Reports of exceptional vagrants submit - Northern California

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