Anyone can raise an action against anyone, whether the procurator fiscal will act on it is another matter, the fiscal will probably throw it out before it waists any court time. Some solicitors will take the neighbours money and raise an action or if they are good will advice him on the council and environment departments findings and probably tell him he is waisting his time as the it won't get past the court clerk, your neighbour obviously does not want to listen he wants to take it further if he can
How can you serve an injunction for trespass on racing pigeons that at one time or another have to be liberated, your neighbour sounds like a right tw#t
###### and Chickadee went through a similar thing but it never got past the council departments, it turned out to be another neighbouring fancier if you can call them that, that was instigating the trouble all because they were jealous of their set up :-/