On Horse Isle 2, which islands do or don't have wild horses?

I like to play Horse Isle 2, Legend of the Esrohs(the life cycle version). I like to find wild horses and I was wondering which islands don't have wild horses? Which islands do have wilds on them, and which islands have the most? I have heard that on different islands wilds are found in certain spots on the island. Also, when you find a wild, and you don't really want it, what is a good way to give them away for a little money? What do you do? Any answers to any of these questions would be appreciated, thanks:)

any islands with an arena or if its heavily populated. go to empty, or almost empty, isles and go to woodsy and my preferences are deadwood, decay, bones, brown, twin rivers, and circle forest isles hope this helped :)