What is that?!?!

I was in the garage one evening and heard a bird flapping its wings. It seemed to be trapped behind a stack of boxes up on our shelf. I climbed up onto the car and peered over expecting to rescue a sweet little song bird. But instead I saw this strange, bizarre creature from the fire swamp!! It was not sweet at all and instantly began hissing at me! I slowly removed the boxes to free the bird. . .which turned out to be a Common Poorwill - a night hawk. The thing continued its attempts to frighten me by opening its wings & huge mouth. After snapping these photos I opened the garage and left the little vulture to fend for itself.