Ottawa Field Naturalists' Club (OFNC) Ottawa/Gatineau (50 Km radius from Parliament Hill) E. Ontario, W. Quebec Compiler: Derek Dunnett at sightings@ofnc.ca A big surprise is a late-reported White-winged Tern at Marais des Laîches on May 21. It could still be around, and it is definitely worth checking any local Black Terns for an interloper. The bird was well photographed. Snow Goose (3) Navan (Giroux Road Ponds), Ottawa. Trumpeter Swan (3) Jun 07, Kilmaurs Side Road, Ottawa. White-winged Scoter (6) Jun 07, Barnett Park, Ottawa. Bonaparte's Gull (2) Jun 08, Britannia CA (general location), Ottawa. "Adults. Non breeding." White-winged Tern - May 21, Marais des Laîches, Gatineau. Least Sandpiper - Jun 06, Carleton Place--Hwy 7 Storm Pond, Lanark. Greater Yellowlegs - Jun 02, Carleton Place--Hwy 7 Storm Pond, Lanark. Other interesting but not rare birds reported here, such as Least Bittern. Red-headed Woodpecker - Continuing, Constance Bay, Torbolton Forest, Ottawa. Yellow-throated Vireo (6) Jun 04-08, Stonecrest Rd, Ottawa. Jun 07, Kilmaurs Side Road, Ottawa. Philadelphia Vireo - Jun 04, Parc du Lac-Beauchamp, Gatineau. Northern Mockingbird (2) Jun 05-07, Thad Johnson Private, Ottawa. Golden-winged Warbler - Jun 04-08, Parc de la Gatineau--Relais Plein Air, Gatineau. On the edge of Trail #5. Golden-winged x Blue-winged Warbler (hybrid) - Burnt Lands Provincial Park, Ottawa. The local eBird reviewers suggest reporting the female hybrid as "Golden-winged x Blue-winged Warbler (hybrid)", not "Lawrence's Warbler", in eBird. Blue-winged Warbler - Continuing, Burnt Lands Provincial Park, Ottawa. Tennessee Warbler - Jun 07, Wilson-Dale Trail, Ottawa. Jun 05, Bellamy Mills Rd, Almonte, Lanark. Northern Parula - Jun 05, Torwood Armitage, Ottawa. Bay-breasted Warbler - Jun 08, Rockcliffe Airport Woods, Ottawa. Blackpoll Warbler - Jun 07, CISCO campus, Innovation Dr. Kanata, Ottawa. Atlas note: The birds that call Eastern Ontario their summer home are now on territory and have started breeding. Whether simply seen, heard singing, or noted carrying food, your observations are most welcome in the Third Ontario Breeding Bird Atlas: a once in a generation opportunity to provide important data that will help inform conservation policies for years to come. #youcanatlasthat anywhere in Ontario via the NatureCounts app, the Atlas website, or by importing an eBird checklist. For more on the Atlas, visit www.birdsontario.org or contact the Ottawa Regional Coordinator at Ottawa@birdsontario.org