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Owyhee River, Oregon Hatch Chart

Insect Size Begin End
Midges
16-22 January 1st December 31st
Scuds 12-16 January 1st December 31st
Sculpin
2-8 January 1st December 31st
Leeches
2-10 January 1st December 31st
Crayfish  4-8 January 1st December 31st
Baitfish 2-10 January 1st December 31st
BWO
16-22 January 1st June 15th
Skwala
6-10 March 1st April 15th
Callibaetis
12-18 April 15th October 15th
PMD
18 April 15th July 31st
Caddis
14-18 June 1st October 31st
Hoppers
4-10 July 15th October 15th
Ants
10-16 July 15th October 15th
10-16 August 1st October 31st
Mahogany Dun 14-18 August 15th October 31st
October Caddis 6-10 September 15th October 31st
BWO
16-22 September 15th October 31st

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