Wings level, close your eyes, and pray(or hope for the non-religious).
Flown by, or through, hundreds, if not thousands of birds during a 30+ yr career. Total hits probably still in the single digits. Amount of manueverings, except for slight pitch changes, to avoid said birds? Zero.
CCS/SVMI Caracas, Venezuela has lots of big birds. You can see them. If you want to avoid them completely you have to land somewhere else. Otherwise you just plow through them and things seem to work out. Apparently the birds read Charles Darwin.
