It does seem very early for Rose-breasted Grosbeak. I don't know how the Rare Bird committee works in Vermont, but you might want to document the bird with a photo. It also helps to rule out odd ball vagrants such as Black-headed Grosbeak.
Also Purple Finch is singing like crazy right now and their songs are pretty similar and viewed through binoculars can look a lot bigger than they are. I wouldn't expect Rose-breasted Grosbeak for at least another month to six weeks depending on what part of the state your in.
> Date: Mon, 30 Mar 2009 13:41:13 -0400
> From: [log in to unmask]
> Subject: [VTBIRD] Rose Breasted Grosbeak
> To: [log in to unmask]
> This seems way early but we knew that we had been hearing 2 Rose Breasted
> Grosbeak's the past few days. Today, we were able to visualize a male in the
> top of a tree singing so beautifully. What a lovely sound to hear.
> Debbie Lyter
> Bristol, VT
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