A Sunday morning walk at the Sawyer Brook Headwaters parcel in Grantham, NH, yielded 48 species. The first birds of the day included a barred owl hunting along the edges of a large vernal pool and an American Bittern calling loudly from a 30-acre beaver dam wetland on the parcel.
Warblers were numerous, with repeated good looks at Bay-Breasted Warbler, Blackburninan Warbler, Canada Warbler, and Magnolia Warbler among others.
I've been focusing my birding on the Sawyer Brook Headwaters, as I'm part of efforts to permanently protect the 386-acre parcel. It includes highest-ranked wildlife habitat and some clearings from 2013 and 2014 timber harvesting that could be great mourning warbler habitat (a species I had in another similar area in Grantham last June). You can learn more about the parcel at https://granthambirdclub.com .
E-Bird Checklist from Sunday: https://ebird.org/nh/view/checklist/S56486355