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