I have a nesting pair on the property.. Description as best I can.. 18" to 20" top of head to tip of tail , 2.5' to 3' wingspan.. dusty white with speckled underside, dark wing tips and a single black band on tail that fans out when soaring, very very vocal with each other. I am thinking broadwinged or coopers. Any ideas? check that any serious ideas? Forgot nest it's built in the upper most fork of a tall poplar.