Here is how to build a trap for buzzards: with some 5 ft high hog wire that is small enough so the buzzards can't crawl thru, make a circle 5 ft or so in diameter held in place with posts, don't have to be big. Throw in something dead. The buzzards can not fly straight up, only at an angel. Therefore they can't get out and you got as pot shot. The only drawback is you have to clean the stinking dead ones out, A buzzard is smart enough not to eat something that smells that bad. They won't eat their own.