Noun marsh hen has 2 senses
  1. American coot, marsh hen, mud hen, water hen, Fulica americana - North American coot
    --1 is a kind of coot
    --1 is a member of Fulica, genus Fulica
  2. gallinule, marsh hen, water hen, swamphen - any of various small aquatic birds of the genus Gallinula distinguished from rails by a frontal shield and a resemblance to domestic hens
    --2 is a kind of aquatic bird
    --2 is a member of Gallinula, genus Gallinula
    --2 has particulars:
     Florida gallinule, Gallinula chloropus cachinnans; moorhen, Gallinula chloropus; purple gallinule
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