any pedigree software for Mac?

[paul-inAZ]

I'm looking for a pedigree software package that will run on the Mac platform.
The one breeders here use is Zoo Easy which is great but it only works with Windows computers.

It is doubly frustrating because electronic records they may send me with any birds I buy come in a '.zoo' text format which I can't open on my Mac. I have to ask for hard copy printouts to see the genetic ancestors.

So- I'd like something comparable to Zoo Easy that uses the Apple/Mac platform to keep track of the genetic background of my birds. This is primarily for English budgies whose genetic history can get pretty complex.
Has anyone adapted one of the many genealogy programs for people or other animals for this function?