If you are like me and have a lot of oak trees in your yard, you have plenty of acorns. We have a line of oaks in the middle of the yard close to the coop that drop a ton of acorns each year. They have been a pain trying to walk on them until this year. I happen to notice today that there we have very few acorns on the ground and I found out why. My Rouen and Swedish ducks are eating them. I then looked it up and found that dubbing duck love acorns and they are a good source of carbohydrates. I had wondered why they looked so fat. I guess that is why they have been digging it the leaves.