French: Tyran de Cassin German: Cassinkönigstyrann Spanish: Tirano gritón
Subspecies and Distribution
T. v. vociferans
Swainson, 1826 – W & C USA (SE Montana, E Wyoming, SW South Dakota, SW Nebraska, C & S California, extreme SE Nevada, S Utah, SW & SC Colorado, N & E Arizona, New Mexico, W Texas), Mexico (Baja California, and S from W Sonora and Chihuahua to Oaxaca); in winter S to Baja California Sur, Chiapas and extreme W Guatemala.
T. v. xenopterus
Griscom, 1934 – SW Mexico (highlands of Guerrero).
20·5–23 cm; male 45 g, female 41·4 g. Has dusky grey head, semi-concealed orange-red coronal patch; lores, subocular area, and auriculars only slightly... read more
Quite loud and noisy, vocalizing frequently (males most vocal and frequently counter-call), and... read more
Variety of different habitats, including arid to semi-humid and relatively open areas with... read more
Food and feeding
Primarily insects, also fruits; occasionally spiders, and even small rodents. Stomach contents of birds in C Arizona indicate beetles (... read more
Generally early/mid-Apr to late Jul/mid-Aug (peak early May to mid-Jul) in SW USA; breeds mid-Mar to Aug in Mexico; possibly two broods... read more
Race xenopterus sedentary. Nominate race a partial short-distance migrant; wintering range... read more
Status and conservation
Not globally threatened (Least Concern). Fairly common to common. Estimated global population at 4,300,000 individuals. USA populations can fluctuate four-fold between years... read more
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