You asked

Is the panasonic lumix gm1 good for wildlife?

The GM1 can work for wildlife, but only with the right lens. It's a small 2013 body with no viewfinder and no stabilisation in the body, so you'll want a stabilised telephoto lens to keep shots sharp at long focal lengths. Wildlife and sport is one of the hardest subjects to shoot, so the lens matters most here.

I'd start with these:

If you're trying long lenses for the first time, buying used is a cheap way to find out what you need.

Written by Claude from this site's pages.

From these pages