Where to Find and Catch Bouffalant
From Pokemon Go Wiki
Bouffalant are found and captured in Nest and Habitat locations.
Nests
Bouffalant Nests are locations that consistently spawn Bouffalant.
Habitats
Bouffalant Habitats are spawn locations where Bouffalant is likely to be encountered, but not guaranteed the way a Nest is.
Additional Tips and Information
Best Nests
If you know a really good nest or any of the nests above is really good, list them here: