• WordNet 3.6
    • v churr make a vibrant sound, as of some birds
    • ***
Webster's Revised Unabridged Dictionary
    • n Churr A vibrant or whirring noise such as that made by some insects, as the cockchafer, or by some birds, as the nightjar, the partridge, etc.
    • v. t Churr To utter by churring.
    • ***
Century Dictionary and Cyclopedia
    • churr See chirr.
    • n churr A name for the whitethroat, Sylvia cinerea. Macgillivray.
    • ***
Chambers's Twentieth Century Dictionary
    • n Churr ch─Śr a low sound made by certain birds
    • v.i Churr to make this sound
    • ***


Webster's Revised Unabridged Dictionary
Cf. Chirr


In literature:

Did you ever hear the churr of a fern owl?
"Misalliance" by George Bernard Shaw
They were cutting the grass on the tennis court below; he heard the soft churr of the mower.
"The Garden Party" by Katherine Mansfield
An' if we're ever found out, that Churr's the man who will do it.
"Sweet Mace" by George Manville Fenn
Another small bird somewhat larger than a stint called a churre and is commonly taken amongst them.
"The Works of Sir Thomas Browne" by Thomas Browne