Wisconsin Department of Natural Resources


Wisconsin's colonial waterbirds

Colonial waterbirds are just that—birds that nest in colonies or groups. Nesting colonies may consist of only a few pairs to a few thousand pairs of birds. Wisconsin is home to 20 species of colonial waterbirds.

  • American White Pelican
  • Black-crowned Night-Heron
  • Black Tern
  • Bonaparte's Gull
  • Caspian Tern
  • Cattle Egret
  • Common Tern
  • Double-crested Cormorant
  • Eared Grebe
  • Forster's Tern
  • Great Black-backed Gull
  • Great Blue Heron
  • Great Egret
  • Green Heron
  • Herring Gull
  • Little Gull
  • Ring-billed Gull
  • Snowy Egret
  • Western Grebe
  • Yellow-crowned Night-Heron