I don't know whether Falcon is going to be played as a bird fanatic in this film or not, but if so, the idea for a funny little scene popped into my mind the other day.
So Cap has met Sam jogging in the park, right? And they talk for a bit, right? So at one point, they stop by a pond in the park, and Sam, talking about how much he loves birds, and how birds are people too, points to a duck floating on the pond and says "See that duck? I named him Howard." Which gets him a befuddled look from Steve.