Crowned Slaty Flycatcher (Griseotyrannus aurantioatrocristatus) - HBW 9, p. 416
French: Tyran oriflamme
Spanish: Tuquito Gris
Taxonomy: T[yrannus] aurantio-atro cristatus [sic] d’Orbigny and Lafresnaye, 1837, Valle Grande, Santa Cruz, Bolivia.
Despite its very different plumage, was for long placed in genus Empidonomus owing to similarities in voice and behaviour; later accorded a monotypic genus based primarily on several apparently uniquely derived differences in syringeal morphology. Molecular-sequence data indicate strong support for Empidonomus varius as its closest relative, the two genera constituting a monophyletic group with Tyrannus. Two subspecies recognized.
Subspecies and Distribution:
- pallidiventris (Hellmayr, 1929) - EC Brazil (E Pará E to Maranhão and Piauí, S to N Goiás).
- aurantioatrocristatus (d’Orbigny & Lafresnaye, 1837) - breeds N & E Bolivia (S from Beni), WC & S Brazil (S Mato Grosso E to W Minas Gerais, S to Mato Grosso do Sul, extreme W Paraná, Santa Catarina and W Rio Grande do Sul), N & C Argentina (S to Mendoza, La Pampa, N Río Negro and Buenos Aires), Paraguay (especially W of R Paraguay) and Uruguay; migrates N to W Amazonia.
- Least Concern
- No sound recordings available yet