Whistle- Animation-> Horn Sound

Well.. calling for any other Mount besides Peco, like Ceourl or Ahriman, ends up in a whistle animation, with a horn sound. (which might look funny)
Is it a bug or just a little mistake in development?

Would be nice to see a clear "horn" animation for calling the right mount.
And when it is possible to show the right "food item" while eating it, than this should be totally fine to be updated too.

these little details make the difference from any f2p titles-
especially in 2013