Keiko breaching in Oregon
The only times Keiko ever breached in Mexico was when he had to during performances. The rest of the time he would be logging motionless at the surface trying to avoid for his body to overheat under the hot Mexican sun.
In Oregon Keiko no longer had to perform, he could now decide himself what he wanted to do.This resulted in a lot of playing, breaching and spyhopping on Keiko’s part. Keiko was now breaching because he wanted to and no longer because he had to.