https://dictionary.cambridge.org/ru/%D1%81%D0%BB%D0%BE%D0%B2%D0%B0%D1%80%D1%8C/%D0%B0%D0%BD%D0%B3%D0%BB%D0%B8%D0%B9%D1%81%D0%BA%D0%B8%D0%B9/butt-in

One night farmer Brown was takin' the air
Locked up the barnyard with the greatest of care
Down in the hen house, somethin' stirred
When he shouted, "Who's there?"
This is what he heard:

“There ain't nobody here but us chickens
There ain't nobody here at all
So calm yourself and stop that fuss
There ain't nobody here but us
We chickens tryin' to sleep and you butt in
And hobble, hobble hobble hobble with your chin”
.......................
Songwriters: Alex C. Kramer / Joan Whitney
Ain't Nobody Here But Us Chickens lyrics © Universal Music Publishing Group
https://www.youtube.com/watch?v=9a2_l2Mivb4