Could be like some set pieces of Tallbird Nests with special Eggs inside
Find them all to get a skin reward, something like that....
For example:
15 random Easter Egg nests are hidden in the world (and use same prefab as normal Tallbird Nest.)
Using go-to on them will cause the Egg to disappear.
Finding and collecting all 15 would get you a skin, such as a Rabbit Hutch skin? Easter Bunny? Y'know?....