angry birds tapper guide for optimal 50 point runs:

AT1 50: at the end, there are pigs. just pray you get black bird bruteforce.

---------if you are set on doing black bird: you can miss 7 points

---------backup is doing yellow bird (slower spawn): you cannot miss any birds.

AT2 50: at the end, there are no pigs. spam 1 black bird and bruteforce the blue bird. (blue bird spawns a bit after the black bird.

--------you can miss 3 points if you do black and blue bird

--------you cannot miss any birds if you do yellow and blue bird

AT3 50: at the end, there are no pigs. just pray you get blue bird bruteforce

---------you cannot miss any birds, no matter what.

AT4 50: at the end, there are no pigs. just pray you get big red bird bruteforce

------you can miss 7 points