Black UFO caught over a farm in Colombia

On December 12, 2015, a man has photographed a dark UFO flying over his farm located in San Juan de Girón (Santander department, Colombia). According to him, these mysterious objects are often visible over this area.

Witness statement:

I have a fruit pineapple fields in the area. there ara an unexcaved cave in my farm and the activiy is maybe every day. Little time ago the state open a hidro electric - water dam. I capture the ufos several times in photo a video to.