My dog has started barking at 5am at the dawn chorus. (This doesn't go on for more than a couple of barks as we come down and stop him, however it is still enough to wake up my neighbour).
My neighbour has complained (which honestly is fair enough) and has suggested we buy a citronella collar for the dog.
I have read the threads about citronella collars and don't have much faith that it would work. However, I am prepared to go through the motions of using one to show willing.
Beyond the high possibility of not working, are citronella collars actually harmful?