LOL. It's a "public interest" law firm.
I found the dirty fingerprints of the NRDC with these guys here, with over 1,200 Google hits on "National Heritage Institute" +NRDC, most of it involving the Delta. They were definitely in on the lawsuits to list the Delta Smelt and Split-tail. My guess is that they handle special applications and "lawsuit surge."
Thanks for the intel. I hadn’t yet googled it. No suprise.