I don't understand how 隹 relates to definitions A-C below.
Definition A.1. Are short-tailed birds standard in China? I'm no ornithologist.
Definition A.2. Again, I don't deal with birds. I'm indifferent to them. Short-tailed birds don't look elegant to me. Did the Chinese think they are elegant?
Definition C. Are short-tailed birds unusual in China?
Above is Yellowbridge. Below is Oxford Chinese Dictionary (2010) p 857.