Eastern Kingbird at Charles River

These pictures are from my walk along the Charles River last week. I walked out onto one of the wooden lookout points and saw 2-3 of the birds perching on the branches on either side of it. At first I almost thought they were swallows, but the white tipping on its wings made me think otherwise. According to my Sibley Guide they will perch on any open perching area to watch for passing insects. The area I saw them in was perfect for that since the water is very shallow and calm there and plenty of bugs were out that night.