One time we were inundated with grass hoppers, my wife read Guineas were real good grasshopper eaters so we ended up get 21 of them. All was well she fixed up on old calf shed to house them in at night and free range during the day.
It all worked out great, except when there was a storm brewing, the Guineas wouldn't go to the roost, so as the summer progressed we lost 3-4 each time a storm blew through, we finally got down to one left, we named it Lucky
One afternoon I was in the office doing paper work, and all of a sudden the cackle of Lucky and the screech of some raptor, in the collision they hit the wall of the office so hard it knocked a picture off the wall
Lucky wasn't Lucky anymore LOL
There is no app for experience