Blackburnians don't have that dense of streaking on the breast and their facial patterns are more distinct with a light supercilium. This is a Cape May Warbler.
Yes, both are Eastern Wood-Pewees (very long primary projection, prominent wingbars, gray vest, peaked head). I guess it is young-ish with those buffy wingbars which might also be why it doesn't have an orange lower mandible.
Oh, I agree with White-throated Sparrow and Yellow-billed Cuckoo. The White-throated Sparrow is a rather dark individual (maybe it's young), but I don't think it has a yellow throat; I think the color is a reflection.