Most fooled

The time I was most fooled-outside of the suburbs of Williamsport , Pa., in an open area. 2 raptors were gliding on flat, stiff, and level wings, and flying wing tip to wing tip. I surely felt they were 2 female Goshawks. These hawks were gray, gray-black. The hawks had no belly bands, nor pataginal marks. Yet the hawks were Red-tailed hawks!