Gnatcatchers (Polioptilidae)

White-lored Gnatcatcher (Polioptila albiloris) - HBW 11, p. 372

French: Gobemoucheron à face blanche German: Weißzügel-Mückenfänger Spanish: Perlita Cejiblanca

Taxonomy: Polioptila albiloris P. L. Sclater and Salvin, 1860, Motagua Valley, Zacapa, Guatemala.
Has in the past been treated as conspecific with P. nigriceps. Birds of nominate race in arid thorn-scrub of Motagua Valley, in C Guatemala, appear to be ecologically isolated from putative conspecifics; study needed of distribution in region between 89°-90° W and 15°-14° N. Distribution in Honduras from vicinity of Cantarranas N towards Aguan Valley similarly uncertain; has been suggested that this population is disjunct. Three subspecies recognized.

Subspecies and Distribution:

  • vanrossemi Brodkorb, 1944 - S Mexico (N Guerrero and N Oaxaca S to C & S Chiapas).
  • albiventris Lawrence, 1885 - coast of NW & CN Yucatán, in E Mexico.
  • albiloris P. L. Sclater & Salvin, 1860 - arid valleys of C Guatemala, interior Honduras and El Salvador S in Pacific lowlands to NW Costa Rica.