Funny buzzard story Cory! You're right, those on the roost with their wings spread are drying out and getting ready to fly. My show up was under a 300' microwave tower for a lot of years and it was the main roost site of black and turkey vultures for many miles, in the winter time they numbered in the hundreds. A nasty, stinking place. I had to climb the tower many times to replace bulbs and it was horrible. The platforms were covered with about three inches of regurgitated remains of everything indigestible, the ladder and everything else (including the parking lot and any vehicles under the tower) were coated with the white splatter that is their droppings and of course by the time you got back to the ground, you were too. The company tried many remedies with no success. Finally, completely disgusted from having splatter bombs dropped on him, one of my coworkers shot one off the tower, I climbed about halfway up, tied him from a cross brace by his feet and they literally disappeared overnight. Until he completely rotted away, they would not roost there. We used this technique for several years until a foreman stopped us and despite all the noise makers they've installed, the phony plastic buzzards and every thing else they've tried, the buzzards are back. In droves!