great horned owls have a wingspan of about 5 feet and weigh about 3 1/2 pounds but the great grey owl is the tallest standing over 3 feet but weighing less than the snowy and great horned.I've seen it during the day. I scared it out of a tree in the back of my land. I was driving my fences and it flew from a tree. I had no idea they could get so big. I'm guessing 3ft tall. It was so big. Roosting about 15ft off the ground. I was real close when he took off. I was looking right at it. I have mixed roosters that will not go in the coop at night. They go up in the trees. I'll notice them gone sometimes too. All of my Oriental s are in pens with netting or a metal roof. I never loose them anymore. My pens are very heavy duty
(i like owls when they are not near chickens)