We do get mating balls in my area, I have talked to s number of reliable people who have seen them, but ha e not been lucky enough to see one myself.

Theyve been described as softball to football sized masses un the brush next to spillways canals a.d abandoned. Vehicles on farms.
Species would be Eastern, Butlerii or eastern ribbon snake. Observers couldnt idenyify species but those are the available suspects.