Today I had a singing male Rose-breasted Grosbeak along the Beaver Brook Trail west of The parking lot on Lookout Mtn Rd at Windy Saddle Open Space.
Specifically, the bird was about a mile or less in, past where the Lookout Mtn Trail splits to the left, past two talus crossings and right where a large rock sits in the trail and you can go either way around it. It was singing loudly from a fir at this bend and towards the next gully down the trail.
Cheers,
Tim MItzen