The Mosquito Creek Corridor IBA extends from the Mosquito Creek Wildlife Area (MCWA), south along Mosquito Lake following the corridor to the mouth at the Mahoning River in Niles, Ohio. Mosquito Lake (7,241 acres) was formed with the construction of the dam across Mosquito Creek in 1944 and is part of Mosquito Lake State Park. The 9,000-acre Mosquito Creek Wildlife Area is a mixture of grassland, woodland, and marshland at the northern end of Mosquito Lake. The corridor of woods and floodplain along Mosquito Creek downstream from the lake encompasses approximately 870 acres.

Ornithological Summary

Priority species Bald Eagle, Wood Thrush, Scarlet Tanager, Prothonotary Warbler, Cerulean Warbler, Blue-winged Warbler, and Ovenbird all nest within the wildlife area. It is a significant wintering area for waterfowl as well as a migration corridor for songbirds and shorebirds (64 Whimbrels 19 May 2000, Ohio Cardinal). Yellow-bellied Sapsuckers nested 1999 and 2000. All of Mosquito Lake has a significant population of Prothonotary Warblers. Hooded Mergansers are documented nesters. MCWA has 2 Bald Eagle nests, with Great Horned Owls, Barred Owls, Red-shouldered Hawks, Red-tailed Hawks, and Cooper's Hawks nesting along the corridor. The north end where Mosquito Creek enters the lake is a significant staging area for immature eagles; as many as 20 immatures have been counted in winter.
Documented as a special area for Ohio Breeding Bird Atlas I. Large numbers of warblers concentrate along the river during spring migration. Daily counts of hundreds of Tennessee Warblers have been recorded. Golden-winged Warblers, Northern Waterthrushes, Magnolia Warblers, and Cerulean Warblers have been regularly seen migrants in spring.

Conservation Issues

Development is threatening the integrity of the corridor at its southern end. Cowbird parasitism, predators, pollution, habitat conversion minor to potential threats.


Owner: Jim Grahl, ODNR Sup. Mgr., 8303 North Park Avenue, North Bloomfield,OH,
44319, 513-521-7275; Howland Township Offices, 169 Niles-Cortland Road NE, Warren, OH, 44484; Mosquito Creek Corridor, 3692 Bruce Drive SE, Warren, OH, 44484

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