Not many, Giselle, as only the Swainson’s, Virginia’s,
Kentucky, Hermit, Golden-cheeked, and Yellow-throated Warbler have breeding ranges limited to areas
within the lower 48 states.
To clarify, the Blackpoll Warbler does not qualify as an
endemic nester to the continental U.S. because it breeds extensively in
latitudes north (and into Canada) of the places where it breeds in the northern
U.S.
(Below photo shows a male Kentucky Warbler.)
