I have 30ac in Rabun County, I have a small herd, 6 does and a few different bucks using our property. I would like to put out an automatic feeder to supplement the natural food I have growing for them. Such as apples and pears along with two small fields of natural growth and plenty of edge browse. I was wondering what feeders work well and which ones to avoid. I have never owned one so I'm starting from scratch. Do I need solar or just battery? I am usually up there at least once a month so what size barrel do I need? I'm sure I should be asking other questions but don't yet know what they are. Any help is appreciated.