|Black and White Warbler, Charles River Peninsula, Needham, MA|
Lots of singing, especially from catbirds and orioles. A few more Baltimore orioles have joined the chorus--I recognize their songs from last year. And the orchard orioles are going non-stop, competing over a female.
Also, a friendly group of warblers, allowing very close approaches, gathered in the grove near the tip of the peninsula. That's where I saw the black and white and a whole bunch of yellow-rumps and palmies.