There are a few pecan trees on the farm that grew up before I got the property. Most of those trees do not appear to hold promise for nut production. But, one tree is somewhat isolated and near the creek. The pecans on it do not appear to have very much scab fungus which is the main problem with pecan trees in this area. So, I put up a stovepipe contraption around it to discourage squirrels from eating the nuts.
But, I only got to eat two nuts from the tree because the crows did the harvesting. The nuts are rather small diameter – the perfect size for the mouths of the crows.