Bell the Cat and Shock the Dog
If you have an outdoor cat, please bell that cat. The domestic cat is the major destroyers of songbirds, and, since cats come from Egypt, our local birds aren't genetically prepared for them. I don't care whether they are natural hunters - they don't belong here.
As far as turtles go, I use the training collar to train my dogs off turtles when I am tramping through the woods and marshes. This might sound just a little wierd to do, but domestic dogs, along with car tires, are the main killers of turtles like our endangered Box and Wood Turtles and, once again, these dog predators are not native to the northeast. A dog can kill a turtle with one bite. When they get near a turtle, I give them a good shock and a loud "Careful", and that seems to handle it fairly well. (Same procedure works for rattlesnakes in the south and west.) They learn after once or twice that reptiles are surrounded by a magic electromagnetic force field, and leave them alone.
Training collars: Yes, we believe in them absolutely. Used correctly, they will save your dog's life, and help you raise a dog that you can live with easily, without harming your dog one bit. Who wants a disobedient dog? Nobody - an untrained dog is nothing but a burden, whether in suburbia, the city, or in the hunting fields. And a dog that is a burden gets neglected, while an obedient dog gets love and company. Some dog trainers refuse to use the training collars to reinforce obedience training, but I think that is silly and overly sentimental: you cannot reason with a dog, and obedience cannot be optional. Carrot and stick.