North American Birds

VOLUME 69 NO3 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.

Issue link: http://nab.aba.org/i/778845

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N O R T H A M E R I C A N B I R D S 370 H U D S O N - D E L AWA R E imm. Brown Pelican was unprecedented on Cayuga Lake, Tompkins, NY 5-9 Jun (MI, Mike Duttweiler, Tom Schulenberg et al.). Double-crested Cormorants spread de- spite N.Y.D.E.C. countermeasures. A build- up at the s. end of Cayuga Lake culminated in two nests 3 Jun in Stewart Park, Ithaca, Tompkins, NY (JMcG), the first on that lake. The nests failed, but 190 birds were count - ed there 10 Jun (JMcG) and 270 at nearby Allan H. Treman State Marine Park 6 Jun (Noah Strycker, Tim Lenz). Cormorant nests in New York harbor increased again to 1742 (TW), and the Gardiner's Island, Suffolk, NY colony to 800 (MS). N.Y.D.E.C. control ef - forts have reduced the Little Galloo colony to 2264 nests (IM) and are actively pre - venting the formation of new nesting colo- nies on Oneida Lake, Oswego/Oneida, Black Lake, Saint Lawrence, and most of the Saint Lawrence River islands, where late-summer concentrations reach the upper hundreds. Buffalo Harbor contained 952 in 21 Jul, and Dunkirk Harbor, Erie, NY contained 300 on 10 Jul (fide MM). A Double-crested Cormo - rant banded as a nestling on Little Galloo on 19 Jun 2014 was shot in South Carolina on 16 Feb 2015 during the first season of legal cormorant hunting there (IM). Following first state records of Neotropic Cormorant in New York in Aug 2013 and in New Jersey last summer, a probable ad. was studied with about 475 Double-crested Cormorants on the breakwater of Buffalo Harbor 13 Jul (JP, Dean DiTommaso), and an imm. was con - firmed photographically in the same place 15 Jul (ph. Gaetan Dupont, JP). HERONS THROUGH CRANES The thirtieth year of New York City Audu- bon's Harbor Herons Survey documented 1351 nests of eight species, down 13% from last year, largely because of declines in Black- crowned Night-Herons and Glossy Ibis. A count of heron movements in and out of the great Pea Patch colony in the Delaware River at dusk 24 Jun reached 2514 (2224 in and (fide SK, m.ob.). Oddest among the summer - ing diving ducks was a male Harlequin Duck in the Niagara River 30 Jun–1 Jul (JP, John Barton). Common Eider ducklings at Great Gull 1 Jul (Niles Kramer, fide JDiC) extended this species' breeding range s. of Fisher's Is - land, NY, where they have bred since 2001. The biggest of several summering flocks was 66 off Fisher's Island 9 Jul (Will Brooks). Montezuma contained a prodigious 166 Pied-billed Grebes 24 Jul (I.B.A. monitoring, eBird). An Eared Grebe in alternate plumage settled at Batavia W.T.P., Genesee, NY 2 Jul+ (GL), extending the twenty-year tradition there. A remarkable concentration of tubeno - ses encountered 130 km off Brooklyn 1 Jun, with seawater at 70º F, included 5 Audubon's Shearwaters, 9 Manx Shearwaters, 465 Sooty Shearwaters, 310 Cory's Shearwaters, 70 Great Shearwaters, 250 shearwater sp., 26 Leach's Storm-petrels, 215 Wilson's Storm- petrels, and 3 Oceanodroma sp. (PG, DG, John Stippick et al.). Following a strong coastal storm, unprecedented numbers of tubeno - ses exited Delaware Bay past Cape May Point early 28 Jun: 186 Great, 19 Cory's, one Sooty, and 2 Manx Shearwaters (TR et al.). Many of the Great Shearwaters seemed ailing, and one died in the surf. This event may relate to reports of mass starvation of Great Shearwa - ters in the Bahamas. The previous maximum Great Shearwater count from land in New Jer - sey was 25 in Jul 2009 (TR et al.). Late the same afternoon of 28 Jun, as stormy winds turned southeastward, observers at Robert Moses counted 129 Cory's, 6 Great, 5 Manx, and 3 Sooty Shearweaters, 37 Wilson's Storm- Petrels, and 2 Parasitic Jaegers moving along shore to the east (TWB, GB, AB). Despite the abundance of other tubenoses in the Region, Northern Fulmar went unreported. American White Pelicans now visit annu - ally. Four moved westward on Lake Ontario off Porter Twp., Niagara, NY 14 Jun (ph. Me - lissa Mance-Coniglio, Bonnie Voight). Up to 11 settled at Fowler's Beach, Prime Hook in late May and remained into fall (m.ob.). An prodigy.net), Skyler Streich, Dave Tetlow, Su- san Treesh, Richard R. Veit, Gale VerHague, Chandler Weigand, Paul Weiskotten David Wheeler (Oneida Lake Basin, NY: tigger64@ aol.com), Will Yandik (Hudson-Mohawk, NY: wyandik@hotmail.com). –––––––––––––––––––––––––––––––––––––– SUMMER –––––––––––––––––––––––––––––––––––––– J une 2015 was cold and wet. On 7 June, Saranac Lake, New York was the coldest weather station in the contiguous United States, at 28º F. June rainfall varied from about average in downstate New York to more than double the average at Plattsburgh, in the Ad - irondacks, and more than triple the average at Wilmington, Delaware. Storms on 27-28 June brought pelagic birds inshore, and caused mortality in Ospreys and beach-nesting spe - cies. July was warm and dry. Rarities included Neotropic Cormorants, Sabine's Gull, and a historic incursion of White Ibis. Abbreviations: Bombay Hook (N.W.R., Kent, DE); Braddock Bay (B.O., Monroe, NY); Brig (Brigantine Unit, Edward P. Forsythe N.W.R., Atlantic, NJ); D.N.R.E.C. (Delaware Depart - ment of Natural Resources and Environmental Control); Fort Drum (Fort Drum U.S. Army Military Reservation, Jefferson, NY); Great Gull (island off e. Long Island); Henlopen (Cape Henlopen S.P., Sussex, DE); Jamaica Bay (Jamaica Bay W.R., New York City); Jones Beach (S.P., Nassau, NY); Little Galloo (island in Lake Ontario off Jefferson, NY); Montezuma (N.W.R., Seneca/Wayne/Cayuga, NY and sur - rounding area); N.J.D.F.W. (New Jersey Divi- sion of Fish and Wildlife); N.Y.D.E.C. (New York Department of Environmental Conser - vation); Pea Patch (island in Delaware River, New Castle, DE); Perch River (W.M.A., Jeffer - son, NY); Prime Hook (N.W.R., Sussex, DE); Robert Moses (S.P., Suffolk, NY). WATERFOWL THROUGH CORMORANTS Introduced Trumpeter Swans bred this season not only at Perch River but also at Montezuma. Black-bellied Whistling-Ducks have appeared annually since 2000, seemingly at random. One settled at Twelve-Mile Creek, Wilson, Ni - agara, NY 28 May (ph Charlie Horton, m.ob.) until mid-Jul, the third for w. New York. Two transients paused 21 Jul at Nickerson Beach, Nassau, NY (Chris Smith, Rob Longiaru, BA, Brent Bomkamp et al.). Two were fed corn in a driveway on Alloway Lake, Salem, NJ 8+ Jul, while 3, probably including the same 2, fre - quented tidal Alloway Creek a few km away SA The breeding population of Common Loons, a Species of Special Concern in New York, has more than doubled since the 1980s to an estimated 600 to 850 territorial pairs, according to surveys conducted between 2001 and 2012 by the Wildlife Conser- vation Society and the Biodiversity Research Institute's Adirondack Center for Loon Con- servation. Simultaneously, their breeding range has expanded beyond its Adirondack core, e. and s. of the Adirondack Park and along the Saint Lawrence River. Meanwhile pro- ductivity has decreased to 0.59 chicks fledged per territorial pair, attributed to human disturbance and Bald Eagle predation. This was deemed this sufficient to sustain further population growth (Schoch, N., D. C. Evers, and A. K. Sauer. 2015. Restore the Call: New York Status Report for the Common Loon. Biodiversity Research Institute. Portland, Maine. Sci- ence Communications Series BRI 2015-14).

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