Tyrant-flycatchers (Tyrannidae)
Thick-billed Kingbird (Tyrannus crassirostris) - HBW 9, p. 421
French: Tyran à bec épais
German: Dickschnabel-Königstyrann
Spanish: Tirano Piquigrueso
Taxonomy: Tyrannus crassirostris Swainson, 1826, Acapulco, Guerrero, Mexico.
Closest relatives of genus may be Empidonomus and Tyrannopsis; recent molecular-sequence data indicate present genus is monophyletic and sister-group to clade that includes Empidonomus and Griseotyrannus; two main clades within genus, loosely corresponding to “tropical species assemblage” and combination of “W” & “E” species groups of earlier authors, but with some exceptions. On basis of similarities in voice and certain aspects of behaviour, has been suggested that present species may be most closely related to T. couchii, T. vociferans<.. View all taxonomy...
Closest relatives of genus may be Empidonomus and Tyrannopsis; recent molecular-sequence data indicate present genus is monophyletic and sister-group to clade that includes Empidonomus and Griseotyrannus; two main clades within genus, loosely corresponding to “tropical species assemblage” and combination of “W” & “E” species groups of earlier authors, but with some exceptions. On basis of similarities in voice and certain aspects of behaviour, has been suggested that present species may be most closely related to T. couchii, T. vociferans and T. verticalis; this hypothesis, however, has not yet been evaluated with molecular data. Race pompalis weakly differentiated; most recent treatments consider this species to be monotypic. Two subspecies currently recognized.
Subspecies and Distribution:
- pompalis Bangs & J. L. Peters, 1928 - SE USA (extreme SE Arizona, extreme SW New Mexico) and W Mexico (Pacific slope from N Sonora, W Chihuahua, Sinaloa and W Durango S to Colima).
- crassirostris Swainson, 1826 - SW Mexico (Guerrero, Morelos, S Puebla, C Oaxaca, SW Chiapas) and W Guatemala.
- Least Concern Enlarge map
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An adult bird feeding on a prey and calling at the same time Locality Ventura County, California, USA (United States) (ssp pompalis)
Don DesJardin 30 November 2002 5 years ago 16 sec 4.8 -
A bird perched looking around, then flying away. Locality Teotitlán del Valle, Oaxaca State, Mexico (Southern) (ssp crassirostris )
Josep del Hoyo 19 April 2009 3 years ago 19 sec 3.8 -
adult juggling delicious fly Locality Arizona, USA (United States) (ssp pompalis)
Malcolm Mark Swan 1 August 2009 3 years ago 43 sec 3.5 -
A bird in a bush with open bill, looking around. Locality Oaxaca, Oaxaca State, Mexico (Southern) (ssp crassirostris)
Josep del Hoyo 18 April 2009 3 years ago 30 sec 2.3
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Perching on twig
Locality Ajijic, Jalisco State, Mexico (Northern)
Hector Ceballos-Lascurain 21 December 2012 20 weeks ago 3.2 -
A ventral view of a bird on a branch.
Locality Teotitlán del Valle, Oaxaca State, Mexico (Southern) (ssp crassirostris )
Josep del Hoyo 19 April 2009 3 years ago 3.2 -
on a cactus
Locality Oaxaca State, Mexico (Southern)
Michael Retter 1 January 2009 3 years ago 2
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Some calls.
Locality Oaxaca, Oaxaca State, Mexico (Southern)
(ssp crassirostris)
Josep del Hoyo 18 April 2009 3 years ago 4 -
Dawn song (repeated) with raucous chatter call given at the end. Locality Sycamore Canyon, Arizona, USA (United States)
(ssp pompalis)
Scott Olmstead 18 July 2009 3 years ago 4
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