Feh

Feh is the messenger owl that gives the players their presents, typically through the Present List. Other than that, Feh plays little to no role in the main story, and has only made appearances through mentions of other characters.

Feh acts as a mascot for Fire Emblem Heroes, and is the presenter of her own show, Feh Channel. She is also featured on the avatar of the official twitter account

(Source: Fire Emblem Wiki)