Photo is a large Gneiss ledge, a remnant of the great snow-capped mountain range which ran through New England in the distant past
Mrs. BD and I are in hiking mode now, especially with the cool Spring weather. (We have only been mostly casual or urban hikers in the past, but we're getting more serious now to the point of a visit to the big sale at REI for waterproof hiking gear.) We picked a steep, deep woodsy 5-miler on Saturday as a warm-up.
In New England, deep woods means relatively mature hardwood with a high canopy. Occasional Hemlock groves. Not very much understory. Whether that is due to deer or just the nature of things I don't know. I do know the Indians hated the understory, and often burned it out. Mature hardwood forest doesn't host a lot of wildlife except streamside. There are some warblers and other things up in the canopy which you can hear but not see without hassle. When there is a powerline cut, suddenly there are lots of birds. Edges, streams, and marshes are where most of the life is.
Birds seen or heard in the deep woods: Wood Pewee, Ovenbird (lots of them), Robin (yes, Robins are woodland thrushes), Wood Thrush, Veery, Rose-Breasted Grosbeak, Scarlet Tanager, Prairie Warbler, Flicker, Downy Woodpecker.