They're chirming and chirping like as many sparrows.
"A Son of Hagar" by Sir Hall Caine
Above me a goldfinch chirmed and fed its young, and they seemed ready to break away upon the wing.
"Wilson's Tales of the Borders and of Scotland" by Various
To hear the birds chirm o'er their pleasing rants!
"The Gentle Shepherd: A Pastoral Comedy" by Allan Ramsay