Grandad once shot a crow out of his pecan tree. Took the dead crow and a coat hanger and bent it so that when he threw the crow up in the tree, the hanger hooked part of the tree and stayed there. Few days later, about 40 crows were hovering around the tree, above the dead crow, and raising cain. After about 10 min of fussing, they flew away and never saw them in that certain pecan tree after that