The Upper Rousay Migratory Bird Sanctuary was established in 1948 by Order-In-Council
P.C. 1948-5070 on November 3rd to replaced a sanctuary that was delisted.
Located 6 km Southeast of Yorkton,
Saskatchewan. Its exact location
is 52o11' N latitude and 102o35' W longitude and it is about 518 hectares in
size. It consists of 55% open water and 45% marsh/sedge meadow.
The lake is part of the Yorkton wetland complex located on
the level to gently rolling terrain in the boreal parkland ecoregion of
Saskatchewan. The lake has an average depth of 0.5m, and contains a number of
bays, peninsulas and temporary islands, as well as several man-made islands. The
entire shoreline of the lake consists of sedge and associated wet meadow
grasses. Other vegetation includes scattered clumps of aspen, willow, and
maple.
Some emergent vegetation includes bulrush, associated
marshes, cattail, spangletop, and phragmiles. Sedges occur in many
areas. Submergent aquatics include pondweeds, water milfoil, mare's tail,
bladderwort, wigeon grass, and associated species.
This sanctuary provides excellent breeding and moulting
habitat for waterfowl. There are large numbers of ducks (dabblers and
divers), and several pairs of Canada Geese that nest here every year. It
is also an important fall-staging area for ducks (mostly Mallards) and geese.
Other water and marsh species which breed here are Horned
Eared, Pied-billed and Red-necked Grebes; Sora; Marsh Wren; and Red-winged and
Yellow-headed Blackbirds; Great Blue and Black-crowned Night Herons, American
Bittern, Common Loon, Western Grebe, White Pelican and Herring and Ring-billed
Gulls have been observed there in the summer. A variety of shorebirds use the
area as well: Wilson's Phalarope, Marbled Godwit, Killdeer, Common Snipe, Upland
Plover, Willet, Spotted and Baird's Sandpipers and American Avocet are known or
suspected breeders. Semipalmated Plover; Greater and Lesser Yellowlegs;
Pectoral, Least and Solitary Sandpipers; and Short-billed Dowitcher are
migrants.
Upland species known or believed to breed in the area
include Belted Kingfisher; Yellow-shafted Flicker, Eastern Kingbird; Yellow
Warbler (click here to listen
to their call, courtesy of Tony Phillips) and
Yellow-throated Warblers; Barn and Tree Swallows; Western Meadowlark;
Clay-colored, Savannah, Vesper and Song Sparrows; Chestnut-collared Longspur;
Red-tailed and Swainson's Hawks; and Northern Harrier.
The sanctuary is protected by Migratory Bird Sanctuary
Regulations under the Migratory Birds Convention Act. Part of it is
protected by Provincial Game Preserve regulations under the Provincial Wildlife
Act. There are regular patrols of the area by the Yorkton, Saskatchewan
detachment of the R.C.M.P. and conservation officers of the Saskatchewan
Department of Parks and Renewable Resources. Enforcement is difficult
because of the lack of roads and changing water levels which alter the
boundaries