Over the last few years I have lost one chicken to a hawk and another to the neighbor's outdoor cat. I live in Garden Home, Oregon (a small village in SW Portland) and there are a number of raccoons in the neighborhood. These raccoons frequently go foraging out of the creek across the street and into the neighborhood. Often they'll trek between my house and the neighbor's house on their way to whatever it is they do all night long. I also have two large dogs (Rottie/Lab and a purebred lab) who spend most of their days in the yard, but are inside at night. In the 3 years I've had birds (I now have three chickens and three ducks) these raccoons have never caused any troubles. I have a hard time believing that they just haven't figured out that there are delicious birds asleep in my backyard. They are pretty clever animals, so I am assuming there is some other factor at work here. Could it be that they smell the dogs and aren't interested in taking the chance of venturing into my yard?