sherloques:

Captain America: The Winter Soldier Audio Commentary:

“In the MCU where you’ve got these dynamic visual characters like the Hulk, Iron Man and
Thor, how do you introduce a guy who glides and talks to birds? All of us pushed for this militaristic
approach to him. Basically, he is a human fighter jet. Sam gets some of the
more dynamic sequences here which is great because it’s really our hope that in
the movie he doesn’t come across as a sidekick, he comes across as a partner to
Cap.
It was on the agenda of everyone to make sure that he occupied his own
story space in the movie and didn’t feel like an afterthought. This mission
would not have been accomplished without his contribution.”