I can only think of one trainer that I can most wholeheartedly recommend if you want to be good with birds.
Except he never considered himself to be a trainer at all.
I mentioned of Tsaoling Bird whisperer who opened my third eye into birdies and beasties. He stay in a remote hamlet of TsaoLing in the heart of Yushan (Jade Mountains) and Alishan mountain massif
The letters on that bird whisperer of Tsaoling are below in chronological order. They are all in Part 1 - Early Period of Tinkerbell.
wTsaoLing1
wTsaoling2
Tsaoling bird whisperer revisited
From: shan lung <shanlung9@y
The visits covered a period of time as can be seen from the date of the letters. You can see in between the 2nd and 3rd visits the additions to the birds of that bird whisperer.
He, that bird whisperer of Tsaoling, is the man that inspired me the most. If I had not the fortune to met and know him, I would not have the courage and inspiration to try with wild caught birdies at all.
If you have not done so, try to find the time to read
Tsaoling bird whisperer revisited
That was when he opened my third eye as to what keeping birdies were all about.
Problem is that he can only speak Chinese or Fujian dialect and almost a recluse.
You must have YuanFeng (Karmic Affinity) with him or he will politely nod his head at you , smile and walk away.
But why bother with going half the world away and may be rejected and learning a new language.
The best trainers are at hand with you.
Like for me.
I am only the trainee.
It is my birdies that are my real trainers.
Hope my answer will not be tarred and feathered for being hysterical and at most, entirely laughable.
Seek other experts for their great ideas to find reputable trainers or criteria to arrive at well reasoned decision.