Talk:List of nature centers in Wisconsin

Inclusion criteria?
What are the inclusion criteria for this list? It's clearly not restricted to notable centers or ones which are covered by secondary sources. For some entries I rather doubt they're "nature centers" at all, and it doesn't help that our article doesn't come with any references that would clarify what is and what isn't a nature center. I rather don't think a farm of external links to commercial enterprises is appropriate. Huon (talk) 13:32, 1 October 2017 (UTC)