Ayrton Senna

Ayrton Senna (or Senna Bird) is a playable bird exclusive to Angry Birds Go! based on the late Brazilian three-times Formula One champion of the same name. He functions the same way as Chuck in Angry Birds Go!, and has the same power as him in that game. Senna can wear his iconic yellow-and-green helmet if you win 41 races while playing as him.

Trivia
Ayrton Senna is the sixth bird to be based on a real person, the first three being the Developer Birds (based on Peter Vesterbacka, Jaako Iisalo and Serdar Soganci), Freddie Mercury being the fourth and Slash being the fifth.

Senna is also the second bird to have his character modeled on Chuck, the first being Freddie Mercury. They are also the only birds made in tribute to deceased people (Freddie died in 1991 and Senna died in 1994).

The reason why you have to win 41 races as Senna to get his helmet is because this is the same number of victories the real Ayrton Senna had during his Formula One career.