
1) Bullbat 2) Caprimulgid 3) Nighthawk 4) Nightjar 5) Poorwill 6) Whippoorwill
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https://www.crosswordclues.com/clue/goatsucker

1) Caprimulgid 2) Caprimulgiform bird 3) Feed on insects 4) Nightjar
Found on
https://www.crosswordclues.com/clue/goatsucker

• (n.) One of several species of insectivorous birds, belonging to Caprimulgus and allied genera, esp. the European species (Caprimulgus Europaeus); -- so called from the mistaken notion that it sucks goats. The European species is also goat-milker, goat owl, goat chaffer, fern owl, night hawk, nightjar, night churr, churr-owl, gnat hawk, and ...
Found on
http://thinkexist.com/dictionary/meaning/goatsucker/

alternative name of birds of the family Caprimulgidae, otherwise known as nightjars (q.v.). The name goatsucker is sometimes applied to the order, ...
Found on
http://www.britannica.com/eb/a-z/g/41

<ornithology> One of several species of insectivorous birds, belonging to Caprimulgus and allied genera, especially. The European species (Caprimulgus Europaeus); so called from the mistaken notion that it sucks goats. The European species is also goat-milker, goat owl, goat chaffer, fern owl, night hawk, nightjar, night churr, churr-owl, gna...
Found on
http://www.encyclo.co.uk/local/20973
Goat'suck`er noun (Zoology) One of several species of insectivorous birds, belonging to
Caprimulgus and allied genera, esp. the European species (
Caprimulgus Europæus ); -- so called from the mistaken notion that it sucks goats. The European species is also
goat-milker ,
...Found on
http://www.encyclo.co.uk/webster/G/40

Goatsucker is a name common to the birds of the genus Caprimulgus, as also to all belonging to the same family - the Caprimulgidae, given originally from the erroneous opinion that they suck goats. The European goatsucker (Caprimulgus europceus) feeds upon nocturnal insects, as moths, gnats, beetles, etc, which it catches on the wing, flying with i...
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http://www.probertencyclopaedia.com/browse/BGA.HTM

[
n] - mainly crepuscular or nocturnal nonpasserine birds with mottled grayish-brown plumage and large eyes
Found on
http://www.webdictionary.co.uk/definition.php?query=goatsucker
nightjar noun mainly crepuscular or nocturnal nonpasserine birds with mottled greyish-brown plumage and large eyes; feed on insects
Found on
https://www.encyclo.co.uk/local/20974

nightjar (def. 2).
Found on
https://www.infoplease.com/dictionary/goatsucker
No exact match found.