This is the first time my hens have had visitors of their own species, visitors that do not want to eat them. Cats stalk my hens. Raccoons eat them. Dogs chase them. Snakes eat their eggs. Wild birds use their waterer and eat their food. But, today, when exbf went out to feed the hens when he got here, he hurried back in and told me to come out. "There are black chickens out here in your yard!"
Of course, I grabbed my camera. When the hens had finished eating what exbf had already given to them and came out to me, the black, young, interloper chickens ran into the pen. I closed them up because I was keeping them safe for their owners who live behind me. After a bit, I decided maybe their owners would think I was detaining their chickens. I just wanted the people to rescue their chickens. Exbf went to their house, but no on answered the door. She is a nurse, and I think she works nights.
So, I let the chickens out of my pen. They ran ran ran to escape the pen, AND they flew right up into a tree that is the neighbor's yard--their owner. They flew about 15 feet right up there with little effort, it seemed. We were both impressed. Look right in the middle of the picture below.