|Central coordinates||113o 42.49' West 50o 32.81' North|
|IBA criteria||A4i, A4iii|
|Altitude||1,000 - 1,010m|
|Year of IBA assessment||2008|
Site description Frank Lake is located approximately six km east of the town of High River and about 50 km south of Calgary, Alberta. It is a shallow lake bordered by marshes and low-lying meadows, although some of the shoreline is non-vegetated. Much of the surrounding landscape has been cultivated, although some native grassland remains. Water levels within the lake are controlled primarily by treated wastewater from a meat packing plant, by tertiary effluent from High River, and by a portion of Highwood River. The main lake basin is now 1,010 ha while 808 ha of adjacent land are back-flood.
Frank Lake has a history of fluctuating water levels; during the 1930s, 1940s, and mid 1980s it was dry for extended periods of time, while during the 1950s and mid 1970s flooding occurred. On occasions when the lake flooded, the local and provincial governments called for drainage of the lake. Ducks Unlimited (DU) persuaded the government away from this course of action and since then have been managing the area and controlling water flow. After the lake dried up in the 1980s, DU looked for a source of water for the lake.
|Species||Season||Period||Population estimate||Quality of estimate||IBA Criteria||IUCN Category|
|Tundra Swan Cygnus columbianus||passage||1995||2,500 individuals||-||A4i||Least Concern|
|Western Grebe Aechmophorus occidentalis||passage||1977||2,200 individuals||-||A4i||Least Concern|
|Franklin's Gull Larus pipixcan||breeding||1971||10,000 individuals||-||A4i||Least Concern|
|A4iii Species group - waterbirds||non-breeding||1977||50,000-99,999 individuals||unknown||A4iii|
|IUCN habitat||Habitat detail||Extent (% of site)|
|Forest||Temperate deciduous woods||-|
|Grassland||Steppe & dry calcareous grassland||-|
|Wetlands (inland)||Freshwater lakes and pools; Freshwater marshes/swamps||-|
|Artificial - terrestrial||Arable land; Improved pasture land||-|
|Land-use||Extent (% of site)|
|nature conservation and research||major|
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Recommended citation BirdLife International (2014) Important Bird Areas factsheet: Frank Lake (south). Downloaded from http://www.birdlife.org on 22/08/2014
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