The first one appears to be a fall female, blackpoll warbler second guess is a pine warbler, but I say a blackpoll for the slender size/shape and the long eye line/stripe across the face, But! especially the lack of an eye ring around the eye really puts it out as a blackpoll.   Now the second one is what I think is a Nashville warbler because of its lack of a blackish line across the chest making it not a non breeding mourning warbler, but what stands out the most is the bold eye ring, the only this is that the morning warbler generally hangs out in low shrubs, and the Nashville not so much. personally my opinion is Nashville warbler, but it still remains not sure.   also I'm not trying to sound like i know it all so feel free to look it up yourself and disagree :)