Blue-headed Vireo at the Nest--II

The same nest as a few days ago, from a different angle and with a nest exchange in progress. No way to tell which parent this is--they swap the nest-sitting duty every 20-30 minutes or so. Again a dull, cloudy day, though today it hasn't rained. Very slow bird activity; there's a Red-eyed Vireo nest at the bottom of the mountain, although much less photogenic than this. When chicks have hatched I may blip either or both again.

Edit: I've been reminded that a hooked bill is characteristic of vireos--it is at least barely visible here (perhaps best in large).