
1) Columbiform bird 2) Sand grouse
Found on
https://www.crosswordclues.com/clue/sandgrouse

Sandgrouse is the common name for Pteroclididae, a family of sixteen species of bird, members of the order Pteroclidiformes. They are traditionally placed in two genera. The two central Asian species are classified as Syrrhaptes and the other fourteen species, from Africa and Asia, are placed in the genus Pterocles. They are ground dwelling birds ...
Found on
http://en.wikipedia.org/wiki/Sandgrouse
[journal] Sandgrouse is the journal of the Ornithological Society of the Middle East. It is named after a family of birds which are particularly characteristic of desert regions such as those found in the Middle East. The first ten issues were edited by Donald Parr. Numbers 11 to 12 and volumes 13 and 14 were edited by Duncan J. Brooks. Vol...
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http://en.wikipedia.org/wiki/Sandgrouse_(journal)

any of 16 species of birds of Asian and African deserts, constituting the family Pteroclidae (or Pterocletidae) and usually treated as a suborder, ... [1 related articles]
Found on
http://www.britannica.com/eb/a-z/s/24

[
n] - pigeon-like bird of arid regions of the Old World having long pointed wings and tail and precocial downy young
Found on
http://www.webdictionary.co.uk/definition.php?query=sandgrouse

Sixteen bird species that form the family Pteroclidae and that inhabit the deserts and dry savannas of Africa and Eurasia; they are similar in size and shape to pigeons, but taxonomists are not sure of their relationships to other families, and thus their order is not determined. Sandgrouse feed primarily on dry seeds and often fly long distances t...
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https://academy.allaboutbirds.org/bird-academys-a-to-z-glossary-of-bird-ter
sand grouse noun pigeon-like bird of arid regions of the Old World having long pointed wings and tail and precocial downy young
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https://www.encyclo.co.uk/local/20974

Any bird of the family Pteroclidae, order Columbiformes. They look like long-tailed grouse, but are actually closely related to pigeons. They live in warm, dry areas of Europe, Asia, and Africa and have long wings, short legs and bills, a wedge-shaped tail, and thick skin. They are sandy coloured and feed on vegetable matter and insects. Sa...
Found on
https://www.encyclo.co.uk/local/21221
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