Bird at my feet

Although this is a garden blog, it seems birds are the thing I come to write about most often. For the last several days a small grey brown with greenish tinge about the neck and head bird has been fluttering to my feet as I go about the gardens. It seems young and although it flutters in and seems not to be able to fly, it does fly as required. Once it flew right up to the top of a fifty foot evergreen. When I walk about it never lets me get more than 40 feet away before it flies to my feet again. I think it is a young cowbird that has bonded to me. It is obviously after the bugs I am stirring up and I have watched as it caught a grasshopper, tore of a leg and then ate it while standing on my foot!
I have to be very careful, as he is so close I fear on might step on him.