Bow River near Banff
Southern Alberta · 6 active this month
Bow River near Banff Hatch Calendar
Last reviewed 2026-05-21
Glacial influence — hatches run 1–2 weeks later than Calgary reach. BWOs and midges primary early season.
May hatches
No photo available
Little Black Stonefly
Capniidae
Glacial influence — hatches run 1–2 weeks later than Calgary reach. BWOs and midges primary early season.
Brown Dun
Ameletus spp.
Glacial influence — hatches run 1–2 weeks later than Calgary reach. BWOs and midges primary early season.
Midge
Chironomidae
Glacial influence — hatches run 1–2 weeks later than Calgary reach. BWOs and midges primary early season.
Blue-winged Olive
Baetis spp.
Glacial influence — hatches run 1–2 weeks later than Calgary reach. BWOs and midges primary early season.
No photo available
Grannom
Brachycentrus occidentalis
Glacial influence — hatches run 1–2 weeks later than Calgary reach. BWOs and midges primary early season.
No photo available
March Brown
Rhithrogena spp.
Glacial influence — hatches run 1–2 weeks later than Calgary reach. BWOs and midges primary early season.