The Collaborative International Dictionary of English v.0.48:

Strepitores \Strep`i*to"res\, n. pl. [NL., fr. L. strepitus
   clamor.] (Zool.)
   A division of birds, including the clamatorial and picarian
   birds, which do not have well developed singing organs.
   [1913 Webster] Strepsipter