What do birds that migrate yearly do for in flight entertainment...?

They hold raffles. Used to be they had competions about who could get the closest guessing how far they would go that day, but that led to some greedy birds creating delays for the migration so they would win. So it was changed to raffles.

They watch movies, of course. "One Flew Over The Cuckoo's Nest" is quite popular.

I once watched Iron Man 3 on the way back from America via Toronto. I am thinking it might give them a little incentive to speed up while flying? They could pretend to be Iron man?

I'm sure they listen to music on their headphones ---------- such as 'The Byrds'.

(in-flight)

"Dodge" .... bullets, lightning storms, airplanes and birds of prey.

have no idea since i dont fly with them

They watch the Alfred Hitchcock movie, "The Humans."