Population
Estimated population is 2,500 - 9,999 (2010) and decreasing.
Status EN
Habitat destruction and degradation through drainage of marshes and planting with crops, is the main threat.
For more information see BirdLife International Species Factsheet.
Voice
A harsh nasal 'chreh' call. Song is a rapid series of 'chip' notes.
Black-polled Yellowthroat (Geothlypis) [XC253370]
by Manuel Grosselet from Ci\u00e9negas del Lerma, M\u00e9xico, Mexico (song)
Black-polled Yellowthroat (Geothlypis) [XC575691]
by Manuel Grosselet from Erongar\u00edcuaro, Michoac\u00e1n, Mexico (song)
Subspecies
Affinities within genus not known; no obvious close relatives.
The following 2 subspecies are recognised:
limnatis Dickerman, 1970 - Southern Guanajuato and northern Michoacán, in central Mexico.
speciosa Sclater, PL, 1859 - State of México (central Mexico).
Similar Species
Common Yellowthroat (Geothlypis trichas) which has pale legs, lighter appearance, less rich underparts and lacks ochraceous wash on flanks. Male has less extensive black forecrown and lacks greyish wash around mask.
References
See References.