Bield Fish · Hatch calendars
Hatch calendars for the waters that have them.
Mayfly, caddis, stonefly, midge, and terrestrial timing — when the bugs come off, by region and river system. The personal hatch calendar Bield builds inside the app starts here.
Blue Winged Olive
mayfly
Baetis spp.
Early Black Stonefly
stonefly
Capnia / Allocapnia
Quill Gordon
mayfly
Epeorus pleuralis
Hendrickson
mayfly
Ephemerella subvaria
March Brown
mayfly
Maccaffertium vicarium
Grannom Caddis
caddis
Brachycentrus spp.
Sulphur
mayfly
Ephemerella dorothea / invaria
Green Drake
mayfly
Ephemera guttulata
Light Cahill
mayfly
Stenacron / Leucrocuta spp.
Yellow Sally Stonefly
stonefly
Isoperla spp.
Pale Morning Dun
mayfly
Ephemerella excrucians
Tan Caddis
caddis
Hydropsyche spp.
Trico
mayfly
Tricorythodes spp.
Yellow Drake
mayfly
Ephemera varia
Slate Drake
mayfly
Isonychia bicolor
Terrestrials
terrestrial
(beetles, ants, hoppers)
October Caddis
caddis
Pycnopsyche spp.
Midge
midge
Chironomidae spp.
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