Yellow Tyrannulet (Capsiempis flaveola) [XC826748]
by Mauricio Cu\u00e9llar-Ram\u00edrez from V\u00e1rzea do Rio Meia Ponte - Goi\u00e2nia-Goi\u00e1s, Brazil (call)
Yellow Tyrannulet (Capsiempis flaveola) [XC388538]
by JAYRSON ARAUJO DE OLIVEIRA from Sales\u00f3polis, S\u00e3o Paulo, Brazil (song)
Subspecies
Genus was previously merged with Phylloscartes, but cranial and syringeal evidence suggest relationships elsewhere within Tyrannidae, perhaps near Phaeomyias and Nesotriccus. Vocal similarities suggest relationship with Inezia subflava-caudata group.
Proposed subspecies amazonus (the Guianas, northern and east-central Brazil), described on basis of very few specimens, appears to be not reliably distinguishable from cerula in larger series of specimens and therefore merged with latter.
The following 5 subspecies are recognised:
semiflava (Lawrence, 1865) - Southern Nicaragua south to eastern Panama, including Coiba I.
leucophrys von Berlepsch, 1907 - North-central Colombia (Sucre east to Magdalena Valley) and north-western Venezuela (base of Sierra de Perijá south to Táchira and western Mérida, and south-western Lara).
magnirostris Hartert, 1898 - South-western Ecuador (Pichincha south to Guayas and El Oro).
cerula Wetmore, 1939 - Locally east of Andes in Colombia, Venezuela, the Guianas, northern Brazil (eastern Amazonas and R Branco east to Amapá), eastern Ecuador, south-eastern Peru and northern Bolivia.
flaveola (Lichtenstein, 1823) - Eastern Bolivia (northern Santa Cruz) east to eastern and south-eastern Brazil (Pernambuco south to Rio Grande do Sul), eastern Paraguay and north-eastern Argentina (Misiones).
BirdLife International Species Factsheet