on the day i left for a camping trip, my dad and sister wanted to let my 4 chickens out for the first time. they seemed ok with the other animlas so they said to just go inside. when we went back out to leave there was one dead chicken, one almost dead chicken, bloodhound chasing one, and one hiding. by the time i left i went from 4 chickens to 2. when i returned they had bought 3 new chickens, one of which is a Rhode Island Red pullet. all i have seen is it sleeping. when i went out to see it again a bit later, it had what i think is drool coming from its beak. i also just recently (about a week beforehand) had a chicken die (5 to 4). im not sure if this is a disease or what... any thoughts?? i dont want to lose this little chicken.