Is the sony a6700 good for wildlife?

Yes, the a6700 is a good wildlife body, mainly because of its subject-detection autofocus and in-body stabilisation. The 1.5x crop also gives you extra reach: a 400mm lens behaves like 600mm. Lens choice matters more than the body, so for birds and animals I'd look at these:

• Sony FE 200-600mm f/5.6-6.3 G OSS: roughly 300-900mm equivalent, a sensible all-rounder.
• Sigma 150-600mm f/5-6.3 DG DN OS Sports: about 225-900mm equivalent, with plenty of reach.
• Sigma 300-600mm f/4 DG OS Sports: about 450-900mm equivalent, if you can afford the bulk and want a brighter lens.

Long lenses are expensive, so buying used is the easiest way in. For more on the subject, see wildlife and sport.

Written by Claude from this site's pages.