This simple plugin which allows chickens to heal players.
CVars:
get pluginsm_chickens_enable // enables chicken health events
sm_chickens_max_players_hp // players' health limit
sm_chickens_heal_amount // how much health points will be given to each player
sm_chickens_heal_amount_at_killing // how much health points will be given at chicken killing
sm_chickens_heal_timer_rate // the time rate of heal timer
sm_chickens_heal_distance // the max disatance for allowing the heal event
sm_chickens_heal_distance_at_killing // the max disatance for allowing the heal at chicken killing