Tyrant-flycatchers (Tyrannidae)

White-crested Tyrannulet (Serpophaga subcristata) - HBW 9, p. 285

French: Tyranneau à toupet German: Weißscheitel-Kleintyrann Spanish: Piojito Tiquitiqui

Taxonomy: Sylvia subcristata Vieillot, 1817, Paraguay.
Taxonomic status controversial; sometimes considered conspecific with S. munda, but the two differ in plumage, also slightly in voice, and in Argentina are narrowly parapatric with limited hybridization; further study needed. Two subspecies recognized.

Subspecies and Distribution:

  • subcristata (Vieillot, 1817) - Bolivia (from N La Paz) and S Brazil (S from S Mato Grosso) S through Paraguay to Argentina (S to N Chubut).
  • straminea (Temminck, 1822) - SE Brazil (S Piauí and Bahia S to Rio Grande do Sul) and Uruguay.