Recognize these nests?

[LWW]

I think they are squirrels...

but I've not seen a squirrel in them...

not bird...

nor plane...

nor even frog, and I'm pretty sure it's not Underdog!

All located at the Wright Brothers Memorial Park located at Huffman Prairie, Ohio...sight of the world's 1st flight school and overlooking the main runway of Wright Patterson Air Force Base, Ohio.

Thanks for viewing.

LW