We have a dog who is quite a barker – any activity outside of our yard is cause for a loud and often sustained volley of barking. It is driving one of our neighbors crazy, so we've been experimenting with various bark control devices. We've got a dog door and the biggest problem is when our dog is out and we're not at home.
So far we've tried:
Locking the dog door, effective, but the dog loves to sit out in the yard and watch the world go by. Also, it seems mean to ask him to "hold it" for most of the day when one of us can't get home to let him out in the middle of the day. I think it might also make him more excitable and vocal when he is out.
Sitting with him in the yard and giving him lots of treats when people and dogs go by. It might help, it has definitely improved his recall, but it doesn't seem to be making a significant shift in barking.
A citronella spray collar - not sure if it works at all. He might either like the smell or he might be ignoring it. He comes in from barking smelling like a lemon…
Ultrasonic bird houses that are supposed to create an unpleasant sound when the dog barks, which is in turn supposed to reduce barking. More than anything we've tried, these seem to be having some effect.
So, my question(s):
What is the best placement for these devices? They have a speaker on one side. I assume that they are highly directional. Is there anyway to estimate or measure the "dispersion angle" (is that the right term) of the speaker so that I can visualize the area that is covered?
How sensitive are ultrasonic signals to interference by foliage?
Any other suggestions for effective placement?