The beak size and shape looks like a Pine female, so does the white wing bar and the white around the upper and lower half of the eye. The breast is a little pale, ie) less yellow than might be expected. The female usually shows some yellow but not as wide-spread or as intense as seen in the breeding male of the species. A profile shot would have made it easier to identify this warbler but I agree that it is probably a Pine, especially since other species have not yet arrived.
