The Collaborative International Dictionary
Attagen
Attagas \At"ta*gas\, Attagen \At"ta*gen\, n. [L. attagen a kind of bird, Gr. ?, ?.] (Zo["o]l.) A species of sand grouse ( Syrrghaptes Pallasii) found in Asia and rarely in southern Europe.
Wiktionary
attagen
n. A sandgrouse (''Syrrhaptes paradoxus'') found in Asia and rarely in southern Europe.