That "belly band" is a tell tale sign, and helpful when you don't get to check the sun shining through the tail feathers. Coopers Hawk has a mottled belly too. But it's less dense, and covers the belly all the way down instead of the denser band just across the belly like this one.

I always have my phone at the ready, and my newest one has a great zoom and mechanical stabilization.

Someday I hope to have a true high quality camera for these!