Photo: Andrea Erb. A female House Finch feeding young in Winnipeg on June 5th, 2010. Atlas code = NY (nest with young) = confirmed breeding

Photo: Christian Artuso. A pair of Red-headed Woodpeckers interacting near Rossburn on June 12th, 2010. Atlas code = P (pair), = probable breeding

Photo: Christian Artuso. A pair of Red-necked Grebes building a nesting platform near Riding Mountain National Park on June 12th, 2010. Atlas code = NB (nest building), = confirmed breeding

Photo: Christian Artuso. A nest of Ruffed Grouse in Duck Mountains Provincial Park on June 10th, 2010. Atlas code = NE (nest with eggs), = confirmed breeding

Photo: David Raitt. A nest of Chestnut-sided Warbler near The Pas. Atlas code = NE (nest with eggs), = confirmed breeding

Photo: Nella Schmidt. A nestling Eastern Phobe. Atlas code = NY (nest with young), = confirmed breeding

Photo: Nella Schmidt. A House Wren carrying nesting material to a gourd in Winnipeg on June 6th. Atlas code = N (nest building by wrens and woodpeckers), = probable breeding

Photo: Alfred Aug. A female Chestnut-sided Warbler building her nest near St Genevieve, Manitoba. Atlas code = NB = confirmed breeding.

Photo by Christian Artuso . A female Canvasback with brood near St Lazare, Manitoba on June 5th. Alas code = FY = Confirmed breeding

Photo by Christian Artuso . An aggressive encounter between two male Chestnut-collared Longspurs near St Lazare, Manitoba on June 4th. Alas code = A = Probable breeding

Photo by Christian Artuso . A nest of Chestnut-collared Longspur with four eggs. Near St Lazare, Manitoba on June 4th. Alas code = NE = Confirmed breeding

Photo by Christian Artuso . Cliff Swallows entering and exiting nests near St Lazare, Manitoba on June 4th. Alas code = NE = Confirmed breeding