With spring finally having officially arrived in my neck of the woods, I figured I'd share with you all my super easy fly spray recipe. It's natural and non-toxic, unlike the flysprays that can be bought at feed stores. I use this stuff to detour flies around my coop, and spray it on the butts of my hens who are prone to flystrike. (If you use it for birds who have poopy butts, you need to clean their butts before you spray it on.) Easy Chicken-Safe Flyspray: 1/4 cup vinegar (I prefer to use apple cider vinegar, but have also used white vinegar and rice vinegar with the same result) 8-10 drops of tea tree essential oil 4-5 drops of lavender essential oil Put all ingredients in a spray bottle, shake to mix them together, and voila, you're all done. This flyspray will last about 24 hours max, so it needs to be reapplied daily. I've found that for keeping flies out of coops and for chickens who get the "runs" in the summer and make a poopy mess, using this fly spray and keeping their butts clean reduces the risk of flystrike.