I am not sure who or what this flying creature is but I stayed far, far away. He/she was also enjoying the nectar from the purple flowers at Alderfer-Oenslager Wildlife Sanctuary.
Seeing the "Buckeye State" from different angles and with interested attention
OgleOhio 
Hummingbird Moth! They have clear wings. Lucky shot!
Sent from my Verizon, Samsung Galaxy smartphone
Thank you for solving the mystery my friend!