The Enemy of my Enemy

This morning the dogs up the road in the wealthy neighbourhood I live in and I found peace. What was it that stopped them from barking and lumbering towards me aggresively? The crows were making them furious, eating the grass seed from their owner's lawn. As I moved towards the lawn his time, they didn't bark at me. They actually looked releaved that I had scared off the crows for them, and they walked back to the house with the solid Oak doors, slowly to lie down at the foot of the front steps. In this way I found peace with the dogs. Will this peace last? I don't know. I will be walking by again tonight though as I often do, and I expect I will find out then.