Seen a year ago in same location.
2 rows of stomata of the bottom of each needle (see photo 3)
My misidentification was spotted by a birder on this website and also on maine-birding. Thank you.
Unmarked breast, median head-stripe, wing bars, small bill, post-ocular stripe, rather flat head. No breast streaking, no apparent white "bib".
Too bad my photos are so awful. Please correct ID if you know what this is.