page_title: List of flora and fauna of Montana
section_title: Fauna
hierarchical_section_title: List of flora and fauna of Montana / Fauna
caption_attribution_description: Western Meadowlark (Sturnella neglecta). Taken on Turri Road from the car with a Canon 500mm f/4L and 40D. Kirk window mount and Wimberley Head.
context_page_description: Montana's large size, 147,046 square miles, and diverse Ecological systems of Montana make it home to a diverse array of flora and fauna.
  This is a list of flora and fauna of Montana related articles.
  Club-mosses and mosses of Montana
  There are at least 23 species of Club-mosses and 153 species of Mosses found in Montana.,
  Coniferous plants of Montana
  There are at least 20 species of Gymnosperms or Coniferous plants in Montana.
  Ferns of Montana
  Horsetails of Montana
  Lichens of Montana
  There are at least 41 species of lichens, Ascomycota known to exist in Montana.
  Dicotyledons of Montana
  There are at least 2109 species of dicotyledons found in Montana according to the Montana Field Guide.
  Monocotyledons of Montana
  There are at least 615 species of Monocotyledons found in Montana.
context_section_description: Amphibians and Reptiles of Montana
  Montana is home to 14 amphibian species and 20 species of reptiles.
  Birds of Montana
  There are at least 427 species of birds found in Montana.
  Molluscs of Montana
  There are at least 42 species of freshwater bivalves (clams and mussels) known in Montana. There are also at least 155 species of gastropods found in Montana.
  Crustaceans of Montana
  There are at least 30 species of crustaceans found in Montana.
  Fish of Montana
  There are at least 31 game and 59 non-game fish species known to occur in Montana.
  Flatworms and leeches of Montana
  Insects of Montana
  Mammals of Montana
  There are at least 19 large mammal and 96 small mammal species known to occur in Montana.
  Millipedes of Montana
caption: Western Meadowlark, state bird of Montana
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