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.

18 hatches tracked
  • 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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