This is something of a week report (generated by eBird) but numbers were scrambled with their less than blog-friendly format... you can see where this is going! So here it is: species only, with unusual birds in bold.
Most sightings are from Rio Grande Village, a few from Boquillas Canyon and the entry road to BBNP from Persimmon Gap (the north side). Dates primarily include Sunday, Nov. 28 and Tuesday, Nov. 30th. Had the northern side of the county been included, Allen's Hummingbird would be on the eBird list as well, it's visiting a feeder in Marathon.
Black-throated Gray Warbler
Western Pygmy Blue
Edit: Allen's Hummingbird photos upon request (HY male).
Hopefully better pics soon to come...