Great save is right. What you have found is the state of La Pelican button and surely dates Civil War. I can point out details if you need but the bottom pic is the front and I clearly see the wings at 10 and 12 o'clock. Rough but still a good relic.
Looks like this LA Local I found here in Va. Arrows at 10 and 12 o'clock point to wings and you can kind of see the bent neck/head to the right in between. The bottom arrow points to what's left of the nest.