Come birdwatching on the famous Parker River National Wildlife Refuge located at the south end of Plum Island. This tour is great for beginner and intermediate birdwatchers. Binoculars, spotting scopes, and field guides are provided for this 2-hour guided tour ... you just need to show up. NBPT Chamber of Commerce members receive 50% discount. Fall migration season is building as there are increasing numbers and diversity of birds showing up daily, including plovers, sandpipers, raptors, and of course the spectacle of tens of thousands of swallows.