Source : Webster's Revised Unabridged Dictionary (1913)

Lanner \Lan"ner\, n. f. Lanneret \Lan"ner*et\, n. m.[F. lanier,
   OF. also, lasnier. Cf. {Lanyard}.] (Zo["o]l.)
   A long-tailed falcon ({Falco lanarius}), of Southern Europe,
   Asia, and Northern Africa, resembling the American prairie
   falcon.