IBA criteria met: A4i, A4iii (2008)
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Area: 1,600 ha
Site description (baseline)
Located northwest of Winnipeg, Grants Lake Wildlife Management Area is a small, primarily cattail-filled marsh near the town of Meadow. It has shrunk to a remnant of its former immense status and is now completely surrounded by intensively cultivated farmland. Several young poplar and willow stands dot the area. Ducks Unlimited has manipulated the marsh through the placement of level ditches, a well established method of creating diversity within otherwise homogenous sites, and the blasting of potholes.
Historically, this has been a famous wetland for geese, and, to a lesser extent, for ducks. Despite the habitat changes of the past, it is still not uncommon for there to be about 100,000 each of Canada Geese and Snow Geese, utilizing the wetland and adjacent cultivated fields during the fall migration. The Canada Goose numbers are comprised of as many as four subspecies: Short Grass Prairie, Tall Grass Prairie, Eastern Prairie and Giant. The Snow Goose numbers represent perhaps a third of the Mid Continent Snow Goose population. Mallards are one of the most common duck present in the fall.
High breeding densities of Red-winged Blackbirds, Yellow-headed Blackbirds, and Marsh Wrens have been observed at Grants Lake, but there have not been any studies that have determined the precise numbers of these species here.
BirdLife International (2023) Important Bird Area factsheet: Grant's Lake WMA. Downloaded from http://datazone.birdlife.org/site/factsheet/11146 on 08/06/2023.