The early warblers started arriving in New England a week or two ago. Pine warblers and palm warblers are typically the first two species to make their way back this far north and, sure enough, both are back now. This post includes photos of both species so you know what you’re looking for. (Above is the pine warbler; below is the palm warbler.)
The spring warbler season is the highlight of the year for many birdwatchers. It will pick up gradually over the next week or so and then erupt from late April through the middle of May. At the height of the warbler migration, a New England birdwatcher can see between 20 and 30 warbler species in a single day. (It would take some effort, of course, but it’s very possible.)
I’ll post frequently about warblers over the next few weeks and, hopefully, have plenty of fresh warbler photos to share. In the meantime, practice up with this link from AllAboutBirds.org — it includes various warblers and their songs.