With the British army sitting in Boston, the navy needs to provide supplies and prevent supplies from reaching the Provincials. An attempt to capture a ship at Buzzard's Bay fails as locals overtake the small British task force and take them prisoner. Similarly, when the British send a ship to protect two merchant vessels providing firewood for Boston, locals again capure the ships. They kill several of the British and take the rest prisoner.
Visit my site at https://blog.AmRevPodcast.com for more text, pictures, maps, and sources on this topic.