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.

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Page 74 of 139

V O L U M E 7 0 ( 2 0 1 7 ) • N U M B E R 1 73 P R A I R I E P R O V I N C E S billed Dowitchers (CA, CJM&WVE ). Tardy shorebirds included 150 Lesser Yellowlegs at Irricana, AB 21 Oct (DS), a Long-billed Curlew at Calgary 3 Oct (TK), a Hudsonian Godwit at Delta, MB 10-11 Nov (CBr), a Sanderling at Delta 15 Nov (m.ob.), a Semipalmated Sandpiper at Weed Lake 23 Oct (AH), and 2 Least Sandpipers at Weed Lake 24 Oct (BW). A Pomarine Jaeger at Glenmore Res- ervoir 23-25 Sep represented about the 5th fall record for Alberta (AS, m.ob., ph.). A Sabine's Gull delighted many observers at Buck Lake, SK 1-4 Oct (BL, m.ob.). Mew Gulls totaled eight be- tween 31 Oct and 15 Nov in s. Alberta, while 30+ Thayer's Gulls were reported in Calgary and Edmonton 4 Oct–15 Nov and 12+ Lesser Black-backed Gulls were in the Calgary area 17 Oct– 10 Nov, all high tallies (fide TK). One Lesser Black-backed Gull was at the PR 227 dump in Manitoba 26 Sep (RKo, N. M.). Three Herring x Glaucous-winged Gull hybrids were reported: one in Fish Creek P.P. in Cal- gary 28 Sep (TK, ph.) and 2 at the Calgary landfill 17-20 Oct (TK). OWLS THROUGH PASSERINES Snowy Owls started to ar- rive in mid-October in s. Manitoba, much earlier than usual and some in poor condition. A Burrowing Owl at Oak Hammock Marsh 24 Oct was well east of the species' cur- rent breeding range in Manitoba (DB, ph.). A Costa's Hummingbird , Alberta's second, was at Sherwood Park from 21 Oct to 27 Nov. It was not identified until 16 Nov (JP, SK, RK, ph.). Manitoba Rufous Hum- mingbirds were at Pe- guis 30 Jul (fide JS) and Brandon 18 Sep–19 Oct+ (SW, ph.). The Red-bellied Woodpecker at Bragg Creek, reported in summer 2015, continued until at least 9 Nov (BK, m.ob., ph.); 4 were re- ported in Manitoba. Flycatchers and vireos had also found Alberta's 2nd Little Stint 27 Sep at Cooking Lake (GR, ph.). A shorebird sur- vey at Whitewater Lake 2 Aug yielded totals of 3123 American Avocets, 3291 Stilt Sand- pipers, 2223 Short-billed Dowitchers and 643 Wilson's Phalaropes (CA, JS); on 5 Sep the tally included 529 Semipalmated Plo- vers, 960 Least Sandpipers and 1200 Long- Although Sabine's Gull is an annual, albeit rare, fall migrant in the Prairie Provinces, seeing one is always a highlight of a day spent birding. This bird was at Buck Lake, Saskatchewan 1 (here)–3 October. Photo by © Kim Mann. This Red-bellied Woodpecker, about the 7th or 8th for Alberta, first reported during the summer of 2015, was rediscovered in the Bragg Creek area in the fall (here 25 October). Photo by © Jocelyn Burrows. One of Manitoba's latest-ever Hooded Warblers was this male at Winnipeg on 25 October. Photo by © Michael Aston. This oriole generated much debate after its discovery at a Gimli, Manitoba, feeder on 17 November, where it lingered into December (here 6 December). The general consensus was that it was a hatch-year male Bullock's Oriole, but the possibility it was a hybrid could not be discounted. If accepted, it would be the first record for the province. Photo by © Donna Martin. Lesser Black-backed Gull sightings in the Prairie Provinces continue to increase. The Calgary, Alberta area alone boasted about a dozen records in fall 2015. This bird was seen at the productive PR 227 dump in Manitoba on 26 September. It seemed healthy, despite a deformed lower mandible. Photo by © Garry Budyk. Although Alberta's second Costa's Hummingbird was present from before 21 October at a Sherwood Park feeder, it was not identified until 16 November. It remained until 27 (here 21) November. Photo by © Steve Knight. completed cleared out at the end of August. The Red-breasted Nuthatch migration in s. Manitoba was poor. A very late Marsh Wren was at Winnipeg, MB 10–11 Nov (VK, RP). Catharus thrush migration was abysmal in s. Manitoba; no nocturnal waves were report- ed. A Hooded Warbler at Fish Creek P.P.,

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