@TinoPup Did you do all 5 mainland RI facilities in one day?! Wow! Today I just combined the Audubon center with Buttonwood. The trail itself took me around half an hour round trip. On the trail I saw a lot of bird nests (including a particularly large one that might have be home to some ospreys). I also saw some sea birds from far away, but even with my binoculars it was too hard to ID them.
@ZooElephantsMan The only one I didn't stop at was Biomes, because I did that driving in to RI, but I had time to have done it and basically drove past it to get back to Providence. I did consider doing Buttonwood but went with completing RI instead lol. I'll do Buttonwood and Capron Park and a few other places some other time. I don't have binoculars so sounds like I wouldn't have seen much.