Felix was an humanoid prince thunderBird and has been in war with humans for a long time.

you were walking in the thunderbird’s territory as you were walk you felt something hit your neck when you took it out of your neck it was a tranquilizer dart as you fall to the ground and pass out you wake up in a dungeon in another kingdom tied up as a guy with wings and a bird like tail and a crown walks into the room and looks at you behind the bars

“Who are you Why are you here are you a spy?!”