spine-tailed swift

from The Collaborative International Dictionary of English v.0.48

Spine-tailed \Spine"-tailed\, a. (Zool.)
   Having the tail quills ending in sharp, naked tips.
   [1913 Webster]

   {Spine-tailed swift}. (Zool.) See {Spinetail}
   (a) .
       [1913 Webster]