Bird Identification: CLOSED: Fly-catching bird around marsh in New England, 1 by mango61

mango61 wrote:
This bird is a whiz at catching dragonflies and moths. Seems to like mostly low-story bushes. We think it's either an Eastern Phoebe or an Eastern Wood-Pewee based on the "vest." It also does move is tail up and down when sitting on a branch, like a Phoebe, but the vest looks more like the Wood Pewee based on the Cornell photos. Haven't been able to separate its calls from others' in the same area. Thanks for any help!