hello all, i have a big problem one of my hens is suffering from mites, ive dusted her and the flock but i believe they have gotten the best of her this morning she couldnt hardly walk or stand. i hate seeing any animal suffer and i dont know if i can cull her or not. is there an easy humane way to put her out of here misery?? its gonna be hard either way but like i said i dont want her to suffer any longer. please help!! thanks