More warblers

Today first thing I went out and immediately saw a couple of birds, making me think it was going to be a red-letter day.  It wasn't, of course, but even so, I did see a couple of warblers I could identify, and a couple I couldn't.  This first one there was no mistaking -- a black-and-white warbler that managed to snag a nice caterpillar, for the avian equivalent of the lumberjack's breakfast.

This next one I saw hunting among the flowers of the black cherry.  I puzzled for a long while over what it could be, before deciding it must be a female blackpoll.  And until someone tells me differently, a blackpoll is what it is.

And just to clear off one I had on my camera from the other day, here's a black-throated blue.

Meanwhile, the chimney swifts, which I thought were lost and gone forever, have shown up in some numbers, so I'm happy about that.  But if there's a harder bird to get a picture of, I don't know what it is.