There are a lot of different animals you call but a lot of them are pretty much the same with just a different descriptor. One thing that might be nifty to do as a changeup would be to allow the falcon/owl or other winged calls fly up with a druid over the skys while in condor form.

Maybe make the hog based ones gore, the dog ones bite, goats headbutt, gorilla smash (instead of bash).

There are certainly some that are really unique (pixie, forest witch, carniverous vine) but a lot of the others seem to just be sliding along an HP/Damage scale with not much differentiation.

White stag headbutts. So there's more variety than you might think.

I think some of the others might be a trade off in terms of hp and offense.