This is definitely a Flycatcher. It could be an Eastern Phoebe. The Alder Flycatcher also looks similar. There are many varieties of Flycatchers. The thing I like the most about them is their aerial acrocabtics display when they catch insects. They are one of our first birds here in the spring (I am in the mountains of NH) and then they leave before most of the other birds do. They nest in the eaves of my house each year. If your photos show two different birds, you may be seeing a male and a female, or an adult and an immature adult.
For anyone with a Kindle or Google Play, you should download the Audubon's Society: Birds of North America. It's free. The app has bidsongs and photos and a lot of great information.
Also, I just recently got a pair of Vortex Diamondback 8 x 42 roof prism binoculars just for birdwatching. I highly recommend them. They have a lifetime, no questions asked, warranty. And the quality is amazing and the view is bright, crisp, and beautiful.