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Rare/Unusual Birds of Colorado

accepted by the CBRC

Black-crowned Night-Heron, Tantra Lake, Boulder County © Christian Nunes

Colorado Birding

  • Herring Gull
    © Bill Maynard
  • Dickcissel
    © Polly Neldner
  • Boreal Owl
    © Bill Schmoker
  • Sulphur-bellied Flycatcher
    © Rachel Hopper
  • Yellow Rail
    © Dominic Sherony
  • Surf Scoter
    © Andrew Spencer
  • Wood Thrush
    © Kathy Mihm Dunning
  • Broad-winged Hawk
    © Ken Rush
  • Groove-billed Ani
    © Rachel Hopper
  • Cave Swallow
    © Steven Mlodinow
  • Cassin's Sparrow
    © Peter Burke
  • Blue-winged Warbler
    © Glenn Walbek
  • Piping Plover
    © Tony Leukering
  • Ruddy Ground Dove
    © Coen Dexter
  • Whimbrel
    © Bill Maynard
  • Dusky Grouse
    © Peter Burke
  • Cackling Goose (Ridgway's)
    © Steven Mlodinow
  • Ancient Murrelet
    © Bill Schmoker
  • Great Crested Flycatcher
    © Brian Gibbons
  • Great-tailed Grackle
    © Nicholas Komar