Good Hiding spot....

I had a feeder full of birds today and it was snowing.... I looked out into the field and about 25 yards behind the feeder I see this Cooper hawk sitting on a pile of branches from a cotton wood that I cut down in the fall... None of the birds knew he was there because usually he uses the roof tops or sits in the trees about 10 feet off of the ground.... He sat there for about 10 minutes and took off toward the feeders... Unsuccessful...