Fly Fishing Trout Fly
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Fly Fishing Nymph

Oregon: Wood River Hatch Chart

FlySizeJanFebMarAprMayJunJulAugSepOctNovDec
Caddis (various)16 - 18      
Green Drake10 - 12            
Ants14 - 16            
Pale Morning Dun16 - 18            
Grasshoppers8 - 12           
Callibaetis16 - 18           
Brown Quill16 - 20           
October Caddis6 - 8            
Click Fly Name to see patterns that imitate it.