I invite these critics to see the pods of humpback , minke , pilot , finback and right whales off Nantucket , to marvel at the thousands of harbor and gray seals lolling on the bars off Monomoy and Horseshoe Shoal , to chase the dark clouds of terns and shorebirds descending over the thick menhaden schools exploding over acre-sized feeding frenzies of striped bass , bluefish and bonita .