Snow Goose L S,M Gadwall S,L S,M Wood Duck S S,M Redhead L S Ring-necked Duck L S Canvasback L S Common Goldeneye L O Bufflehead S,L O Duck L S Common Merganser L S Red Breasted Merganser L S Long Billed Marsh Wren L D Short Billed Marsh Wren L D SPECIES WITH DEEP WATER DEPTH PREFERENCES (> 10”) Wetland Size Vegetation Density Bird Species S less than 5 ac. S sparse; M moderate – – – L Large, greater than 5 ac. D dense; O open water – – – Pied Bill Grebe S,L S,M Great Blue Heron S,L S,M Canada Goose S,L S,M,O American Widgeon L S Lesser Scaup L S Hooded Merganser S,L S,M Purple Gallinule S,L S,M Common Gallinule S,L S,M American Coot L S,M Common Tern L S Belted Kingfisher S,L S,M TIMING AND EXTENT OF WATER LEVEL MANIPULATIONS Wetlands that have been constructed with level control structures (commonly known as stoplog structures) can be managed in order to maximize their benefits to water bird species. Following are some recommendations for manipulating water levels. By managing water levels, unwanted plant growth can be controlled, desirable plant growth can be encouraged, and certain mixes of open to vegetated water can be established and maintained. Post Spring Migration Period May & June –
Snow Goose L S,M Gadwall S,L S,M Wood Duck S S,M Redhead L S Ring-necked Duck L S Canvasback L S Common Goldeneye L O Bufflehead S,L O Duck L S Common Merganser L S Red Breasted Merganser L S Long Billed Marsh Wren L D Short Billed Marsh Wren L D SPECIES WITH DEEP WATER DEPTH PREFERENCES (> 10”) Bird Species Wetland Size S – less than 5 ac. L – Large, greater than 5 ac. Vegetation Density S – sparse; M – moderate D – dense; O – open water Pied Bill Grebe S,L S,M Great Blue Heron S,L S,M Canada Goose S,L S,M,O American Widgeon L S Lesser Scaup L S Hooded Merganser S,L S,M Purple Gallinule S,L S,M Common Gallinule S,L S,M American Coot L S,M Common Tern L S Belted Kingfisher S,L S,M TIMING AND EXTENT OF WATER LEVEL MANIPULATIONS Wetlands that have been constructed with level control structures (commonly known as stoplog structures) can be managed in order to maximize their benefits to water bird species. Following are some recommendations for manipulating water levels. By managing water levels, unwanted plant growth can be controlled, desirable plant growth can be encouraged, and certain mixes of open to vegetated water can be established and maintained. Post Spring Migration Period – May & June
OM_OHIO_7-7-2015.docx