An Odd (at least to me) Sighting

As I sipped my coffee and looked out my kitchen window this morning, a crow landed in this tree. A couple of seconds later , it was joined by a magpie and then a couple of seconds after that, a chickadee. They hung out for a few minutes. Then the crow flew off followed by the magpie and then the chickadee. I thought it an unusual grouping. Obviously, they left before I found my ‘phone.