Melbeforeyou
Chirping
Some snakes don't just kill to eat, they kill to kill. They will either vomit the animal back up to just kill something else, or they will leave the corpse and kill another. Either way snakes have been known to do that. I am not saying that a snake did it, but if there are no visible signs of injury, that is a possibility of death. Along with just the heat, chickens put off a lot of heat you put that with several chickens, and the 90 degree weather, death happens even at the attempt of the owner to keep them cool. I don't like to force my chickens to get wet, because they usually dont like it, but if it keeps them from getting to hot, by golly i'll do it regardless of how they like it. Life is better then making them mad at you for a couple hours lol.I can post a picture of the coop and the chickens if that would give a better idea of it. I have been trying to get them in the sprinkler frequently but they didn’t really like it. I think I need to get a larger water container so they don’t run out as frequently. But the older hens I’ve had for over a year and they have a similar set up. A snake is a huge possibility. I once found a small hole about a half inch around in the netting and it could’ve been from a snake. Also I used to see mice but not anymore so the snakes could be eating the mice too.