I learned a version of this song when I was in primary school in North Yorkshire and have never since found it in print. The verses are standard but the tune and chorus is very different to any other version that I have heard or seen.

I remember it went like this....

A carrion crow sat on an oak
Derry, derry, derry, down O
A carrion crow sat on an oak
Watching a tailor shape his cloak
Hey ho for the carrion crow
Derry, derry, derry, down O