Even if you can locate it, is there any practical way of retrieving it?
I'd suggest you or someone with appropriate equipment simply climb the tree, to get a view from near the canopy.
Would the property owners allow any damage to the tree? Hiring large machinery that could reach it from outside the tree would probably exceed the cost of the drone.
Maybe just let it go? Or....
youtube.com/ watch?v=8_Bo2ro60ro