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Tyrant-flycatchers (Tyrannidae)

Ash-throated Flycatcher (Myiarchus cinerascens) - HBW 9, p. 437

French: Tyran à gorge cendrée German: Kalifornien-Schopftyrann Spanish: Copetón Cenizo

Taxonomy: Tyrannula cinerascens Lawrence, 1851, western Texas.
Phylogenetic analysis of mitochondrial DNA placed this species in a clade with M. yucatanensis, M. crinitus and M. tyrannulus. Was in the past sometimes considered conspecific with M. nuttingi, but differs in mouth-lining colour, vocalizations, rectrix pattern, wing formula, and morphometrics; no evidence of hybridization between the two. Race pertinax differs slightly from nominate in average measurements, but not diagnosably distinct in plumage or vocal characters; perhaps represents end point of a cline and, as such, of doubtful validity. Two subspecies r.. View all taxonomy...

Taxonomy: Tyrannula cinerascens Lawrence, 1851, western Texas.
Phylogenetic analysis of mitochondrial DNA placed this species in a clade with M. yucatanensis, M. crinitus and M. tyrannulus. Was in the past sometimes considered conspecific with M. nuttingi, but differs in mouth-lining colour, vocalizations, rectrix pattern, wing formula, and morphometrics; no evidence of hybridization between the two. Race pertinax differs slightly from nominate in average measurements, but not diagnosably distinct in plumage or vocal characters; perhaps represents end point of a cline and, as such, of doubtful validity. Two subspecies recognized.

Subspecies and Distribution:

  • cinerascens (Lawrence, 1851) - breeds W USA (C Washington, Idaho, Wyoming, W Colorado) S to C Mexico; winters from S USA to Honduras, mainly on Pacific slope.
  • pertinax S. F. Baird, 1859 - S Baja California (Mexico).

Sounds

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