Thank you all for the interest and the input. Hillbilly Joe yes my husband was born and raised in the Midwest and he recalls many verses, some of them bawdy, for this song. There is no doubt that we are talking about several songs here, but as Amos pointed out and as I have several times, it's the chorus that they share that I am wondering about here. I should also note that the job of crow-scaring was also well-known in rural America up until the 20th Century. Also these songs had, by the 19th Century, become known as "nursery rhymes" after they were collected by Halliwell. There is nothing exclusivly Southern about the language of the chorus. British crow-scaring songs have lines about "Master" as do many other British songs. Some talk about birds being allowed to have some corn - until Master comes around.
I also wish to note that I personally have a deep love of old songs that have been developed and changed in the American South and for hundreds of old songs born in America. Something very special happened there. I am just interested in threads and connections and patterns in old songs and in singing the songs. I don't dispute that this song, whatever its roots, now sounds and feels American.