I got some video of one of the nesting phoebes today. It's a little hard to see, but the bird in the video has some vegetable matter in its beak. The brighter green colored area at the top edge of the nest is new material placed over the past 3 or 4 days.
While I was bird watching from my window today, I also saw my first eastern tiger swallowtail of the season. It was flying erratically and only landed briefly, so no photos yet.