Some other friend had given his boys a "vociferant burro.".    From Wordnik.com.  [Songs and Other Verse] Reference

The night life of any dockside is as vociferant as the day.    From Wordnik.com.  [Nights in London] Reference

Ye-e-e-es … the vociferant voices of African leaders 'protestations.    From Wordnik.com.  [tHiNkEr'S rOoM] Reference

And with this, she snatched the cloth from the boy's hands, shook first him and then his frock, to get rid, in so far as a shake might accomplish it, of original depravity and sandy soapsuds, and carried him, vociferant, to the door, where she set him down to the consolation of gravel pudding again.    From Wordnik.com.  [Faith Gartney's Girlhood] Reference

She sat, with her vociferant Twins.    From Wordnik.com.  [The Wit and Humor of America, Volume IV. (of X.)] Reference