Zoom and the Micro 4/3 system.

I have a Canon SX50HS, and I can zoom in alot it has 50X zoom, I have put two pics in members gallery. SO my question is I want to get an Olympus m4/3 camera, and I wanted to know what is the maximum zoom I can get with the current lenses. I do not understand the technical side of photography, I like taking pics, and I like it when things are easy. I am not interested in a DSLR because they are too large and complicated for my taste. I like how the epm2 has very few controls. But I like to zoom in on wildlife, so what kind of zoom can I get, 20x 30x? Thanks for the help.

Here is a pic wide a possible, just walked into the bird enclosure.

Full 50X, or 1200MM.