chirping

from The Collaborative International Dictionary of English v.0.48

Chirp \Chirp\, v. i. [imp. & p. p. {Chirped}; p. pr. & vb. n.
   {Chirping}.] [Of imitative orgin. Cf. {Chirk}, {Chipper},
   {Cheep}, {Chirm}, {Chirrup}.]
   To make a shop, sharp, cheerful, as of small birds or
   crickets.
   [1913 Webster]

from The Collaborative International Dictionary of English v.0.48

Chirping \Chirp"ing\, a.
   Cheering; enlivening.
   [1913 Webster]

         He takes his chirping pint, he cracks his jokes.
                                                  --Pope.
   [1913 Webster]