Brief history, brooded my layers with 8 slow cornish and a black broiler. Since my layers got big enough, i put them with the main flock. Havent been spending tons of time with my meat birds in their pen (what i used as their brooder) lately. Figured the black broiler was just lazin around when id go out and take a peek/feed. examined closely today. his neck is stiff/eye wont open/lethargic. 1 slow cornish is lethargic/slow reactions and wont run around when chased. I dispatched the black broiler. Feel that i should dispatch sick slow cornish rooster too. Anyone know what this might be? is it contagious?