Magic Reservoir is a large irrigation reservoir, surrounded by sagebrush and grassland habitat. Three islands, when water levels are high, within the reservoir serve as nesting sites for California and Ring-billed Gulls, and Caspian Terns. The rest of the reservoir is used year-round by waterbirds.

Ornithological Summary

Breeding season: (Drought conditions significantly effect the water level at Magic Reservoir as does the release of water for irrigation) Western and Clark?s Grebes (I have never seen young, it is possible that the adult birds that summer at Magic are not yet of breeding age). Common Loons (also not of breeding age). Canada Goose, Mallard, Common Merganser, Great Blue Heron, Killdeer, American Avocet, Long-billed Curlew, Spotted Sandpiper, Willet, California Gulls, Ring-billed Gulls, Caspian Terns.

(I don?t know if these areas are included in this IBA/IBIS) It is important to note that there are several ponds located within ? (BLM land) and ? (private land) mile from the open water at Magic Res. In which the water level and vegetation remain fairly stable all through the breeding season. In and near these ponds, the following species breed; C. Goose, Mallard, N. Shoveler, Cinnamon Teal, Sandhill Crane, Killdeer, American Avocet, Willet, Spotted Sandpiper, Common Snipe, American Coot, Sora Rail, Wilson Phalarope, Pied-billed Grebe.

Migration: Spring: Common Loon, Horned Grebe, Eared Grebe, Western Grebe, Clark?s Grebe, Double-crested Cormorant, Great Egret, Black-crowned Nigth-Heron, White-faced Ibis, Trumpeter and Tundra Swan, Canada Goose, Mallard, Gadwall, Northern Pintail, American Wigeon, Northern Shoveler, Cinnamon Teal, Blue-winged Teal, Green-winged Teal, Canvasback, Redhead, Ring-necked Duck, Lesser Scaup, Common Goldeneye, Bufflehead, Hooded Merganser, Common Merganser, Red-breasted Merganser, Ruddy Duck, American Coot, Killdeer, American Avocet, Black-necked Stilt, Greater and Lesser Yellowlegs, Willet, Spotted Sandpiper, Long-billed Curlew, Western Sandpiper, Least Sandpiper, Long-billed Dowitcher, Common Snipe, Wilson?s and Red-Necked Phalarope, California and Ring-billed Gull, Black Tern, Bonaparte?s Gull, Forster?s Tern.

Fall: Common Loon, Yellow-billed Loon (documented fall of 2002 & 03) Pacific Loon (documented fall of 2002 and 03), Horned, Eared, Red-necked, Pied-billed, Western and Clark?s Grebes, Great Blue Heron, White-faced Ibis, Canada Geese, Ross?s Goose, Mallard, Gadwall, N. Pintail, Am. Wigeon, N. Shoveler, Cinnamon Teal, Green-winged Teal, Canvasback, Redhead, Ring-necked Duck, Lesser Scaup, Surf Scoter, White-winged Scoter, Common and Barrow?s Goldeneye, Bufflehead, Common Merganser, Ruddy Duck, American Coot, Sandhill Crane, Killdeer, American Avocet, Lesser Yellowlegs, Willet, Spotted Sandpiper, Long-billed Curlew, Red Knot (one report), Sanderling (one report), Western Sandpiper, Least Sandpiper, Long-billed Dowitcher, Wilson and Red-necked Phalarope, California and Ring-billed Gull, Caspian Tern,

Wintering: Canada Geese, and Mallard

Conservation Issues

Drought issues are a serious problem, particularly for nesting gulls and Caspian Terns whose nesting site is no longer surrounded by water. Because of low water levels, predation is a serious problem for nesting gulls and likely led to the complete nest failure observed in 2004. However, one of the three nesting islands was surrounded by water in 2005, and successfully produced many young gulls and several young terns. Recreational development/overuse is potentially a problem concerning disturbance of birds.

Habitat

Blackfoot reservoir is surrounded by grasslands (amount varies depending on water levels), and sagebrush/salt desert shrub habitat.

Stay abreast of Audubon

Our email newsletter shares the latest programs and initiatives.