as for identifying the birds over head. the ones that look like Vultures mostly are. they should have a red head and gray wing edges. the immature eagles with have a bigger black head and a lot less color on the bottom of its wings. where I live we have a nesting pair about 2 miles north of me. I see them from time to time riding the air currents. as for the white head feathers on eagles they don't start coming in till they are 4 years old.