by Kaios » Thu Jun 03, 2021 6:27 pm
I think the item is retrievable from the same bird that stole it from you while attempting to raid a nest, you would just have to catch it then and right click it to "Collect Swag" that the bird has in its possession. Otherwise, I am not sure what happens to the item if it is not collected right away. I assume it goes in to a pool similar to the pools for objects thrown in water or dropped on the ground and then would appear randomly on another Magpie at some point.
If you did not manage to get the keyring back and you have not yet done so, you should definitely replace the locks for any keys that you lost.