We have a slough just across the road from us that has hundreds and hundreds of geese during the migration. The eagles follow the geese. We have had up to 75 eagles in our grove, the grove across the road and in various trees around that slough at times. (Not many yet this year, but then the water is a little "hard" for the geese right now. We also have a nesting pair of bald eagles less than a mile from our place.
I can't imagine what could have happened to that neighbor dog. *cough, cough* Must have had an accident or something...
Some dogs are just down right careless.