Where to Find and Catch Yungoos
From Pokemon Go Wiki
Yungoos are found and captured in Nest and Habitat locations.
Nests
Yungoos Nests are locations that consistently spawn Yungoos.
Habitats
Yungoos Habitats are spawn locations where Yungoos 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: