
1) Bird family 2) Family rallidae 3) Rails
Found on
https://www.crosswordclues.com/clue/rallidae

The rails, or Rallidae, are a large cosmopolitan family of small- to medium-sized birds. The family exhibits considerable diversity and also includes the crakes, coots, and gallinules. Many species are associated with wetlands, although the family is found in every terrestrial habitat except dry deserts, polar regions, and alpine areas above the s...
Found on
http://en.wikipedia.org/wiki/Rallidae

the rail family, a bird family that includes the species known as rail, coot, crake, and gallinule (qq.v.).[1 related articles]
Found on
http://www.britannica.com/eb/a-z/r/8

Rallidae is the Rail family of birds of the order Grallae. They are characterized by a body compressed vertically; a short, stout bill; rather stout legs; four toes, the front three elongated.
Found on
http://www.probertencyclopaedia.com/browse/BR.HTM

[
n] - rails
Found on
http://www.webdictionary.co.uk/definition.php?query=Rallidae
family Rallidae noun rails; crakes; gallinules; coots
Found on
https://www.encyclo.co.uk/local/20974
No exact match found.