Posted: 25/04/2014 at 08:08
There's lots of conflicting statements on the net.
Rowan berries are used to make jellies for human consumption. They are not eaten raw by humans as they taste acrid and like many berries can cause stomach upsets if eaten raw.
The majority of rowan berries are eaten by wild birds.
In my experience I have never known a dog to eat rowan berries (and I've had many rowan trees and many greedy dogs). There are lots of plants and berries that could cause stomach upsets to dogs if they ate a large amount of them, but because they taste unpleasant dogs don't eat them.