You asked

Is the sony a1 good for wildlife?

The Sony a1 is a capable body for wildlife, and its 50.1-megapixel sensor gives you room to crop. Wildlife is also one of the most gear-dependent kinds of photography, so the lens matters most. The wildlife and sport guide covers why.

For reach, I'd start with these from the a1's lens list:

If you're not sure you'll stick with wildlife, buying used is a good way to try a long lens without much risk.

Written by Claude from this site's pages.

From these pages