unfitness: poor physical condition; being out of shape or out of condition (as from a life of ease and luxury)
ill health: a state in which you are unable to function normally and without pain
ciconiiformes: order of chiefly tropical marsh-dwelling fish-eating wading birds with long legs and bills and (except for flamingos) unwebbed feet: herons; storks; spoonbills; flamingos; ibises