My beautiful 7-year-old BR rooster has stopped crowing... usually every morning I hear him as he answers the neighbor's rooster(s). Neighbor is down to 1 rooster, rather than 3, so I didn't think much of it. When I go into the coop, he seems to be still sleepy in the am... Seems ok during the day, does his normal stuff (eating, drinking, chasing the girls). Went into the coop last night, and his breathing seemed a bit labored - but I could be overthinking that. Any ideas?