local wildlife in elk island national park`s astotin lake in alberta.

alberta america animal astotin background beak black brown camouflaged canadian closeup color colors creature destination duck duckweed educational environment environmental feathers feed feeding fowl grass green isolated lake lakes land landscape local mallard mud national natural nature north nutrient organic outdoor plant pond protected reeds rich scenics season seasonal study summer surface swamp swampland swim swimming texture trees view wade wading water webbed weed wet wetland wild wildlife wing