The bird that can't Byte.

Sellers

https://imgur.com/a/ooVdnzY - 3 at 13.78 Keys (Young, Young, 1 Day) and 1 at 14 Keys (5 Days)

https://backpack.tf/item/5225825280

https://backpack.tf/item/6649408645

https://backpack.tf/item/6893172281

https://backpack.tf/item/5268036407

Buyers

https://imgur.com/a/a9Ketwy - 4 at 10.49 Keys (Young, Young, 3 Days, 3 Days), 1 at 10.48 Keys (8 Days), and 1 at 9.7 Keys (25 Days)

https://backpack.tf/u/76561198438349516

https://backpack.tf/u/76561198364225924

https://backpack.tf/u/76561198394453476

https://backpack.tf/u/76561198381528375

https://backpack.tf/u/76561198151696423

https://backpack.tf/u/76561198044684270

Sales

https://backpack.tf/profiles/76561198453530349#!/compare/1529712000/1529798400 - Sold for 10 Keys + 15.77 Refined (0.49 Keys), rounding to 10.5 Keys

https://prnt.sc/jyu09h - Sold for 13 Keys + 25 Refined (0.78 Keys), rounding to 13.8 Keys

https://marketplace.tf/items/30052;11 - Sold for $30.6 when Keys were ~$1.94 each (30.6 / 1.94 = 15.77 Keys)

Credits to SugarFreeCookies for the second sale.

Using the Sellers to call 15.77 high.