You are the chubbiest bird in the flock but you are determined to keep up with the other birds so using your incredible physics skills you take advantage of every small benefit you can get to your speed.

you cannot fly for extended periods of time without getting tired so you take advantage of the wind speed and even temporary borb body enhancements like wooden wings and spicy peppers to really get you flyin'

the game works that you tap the screen or a button to flap your wings which propels you up slightly, slightly similar in flying mechanics to flappy bird.

you can use the power ups like the spicy pepper to propel you up and increase your movement speed to the right, so it gives you a little bit of an edge if you just cant get high enough to get over a wall etc.

image from borb:

https://pbs.twimg.com/profile_images/666431768661065728/Pp8deuJS.jpg