I've lost 4 male birds in less then 2 weeks. The last 2 (16 week old boys) happened the last 2 nights in a row! My birds free range all day but are locked up in a safe coop all night and I don't let them out until 7:30-8am. I go out after work to give treats and spend time with them and see that everyone is accounted for. I go back in the house and come back out at dusk to tuck everyone in and thats when i notice the bird count is off (I have/had 40+ chickens). The morning is when I figure out who is missing I live in in southern WV and my neighbor recently killed a bobcat and coyote. We have plenty of racoons around too. What could it be? The birds vanish with no signs of struggle or loud squawking heard. Why is it only roosters so far? I only have 1 left and 38 hens. Has anyone ever used those solar night lights/eyes and do they work??