Coastal eastern Mexico in central and southern Tamaulipas, extreme eastern San Luis Potosí
 
Population
Estimated population is 2,500 - 9,999 (2010) and decreasing.
Status VU
Habitat destruction and degradation through modification of freshwater marshes, primarily for cattle-ranching, appears to be the main threat.
For more information see BirdLife International Species Factsheet.
Voice
Song is a rich, scratchy series of phrases similar to that of Common Yellowthroat (Geothlypis trichas). A harsh 'chrek' call.
Altamira Yellowthroat (Geothlypis flavovelata) [XC223393]
by id from Tampico area, Vera Cruz, Mexico (song)
Subspecies
No subspecies.
Presumed to be part of the superspecies which includes also Common Yellowthroat (Geothlypis trichas), Belding's Yellowthroat (Geothlypis beldingi) and Bahama Yellowthroat (Geothlypis rostrata) and the four have sometimes been regarded as conspecific.
Similar Species
Common Yellowthroat (Geothlypis trichas) which has grey border to mask. Female duller and lacks mostly yellow face and underparts.
References
See References.