chirm

verb
  1. (intr) (esp of a bird) to chirp

Word Origin for chirm

Old English cierm noise; related to Old Saxon karm
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012