How many essence bottles are needed for evolution on level 60?

Hi birdies! I've got two question about evolution on the 60th level:
  1. How many essence bottles are needed for evolution on level 60?
  2. I got now a blue bird on level 57 and I still didn't end the black zone – if I level it up to 60, will i also need for the blue bird the Super trainer from the red zone or only the essence? (I've read about the Super trainer in this forum, but there were no details)
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