The Gray Vireo is a skulker in the dense vegetation where it breeds. Also compare with Plumbeous Vireo, which is shorter-tailed and more boldly marked. This species is a frequent cowbird host. Vireo vicinior Few birds are as plain as the Gray Vireo, a drab summer resident of juniper woods and open brush in the Great Basin region.
Seasons timeline Learn more. A tireless little bird of thickets and thorn scrub, the Bell’s Vireo nests from the Midwest to the Southwest and into northern Mexico. Timing and Routes of Migration. A. S. O. N. D. Modeled area (0 … Gray Vireo Vireo vicinior The Gray Vireo is the rarest breeding bird of San Diego County’s chaparral. Despite some local extirpations and a great decline in overall numbers, the general outline of the breeding range remains the same as in ca. Gray Vireo - Vireo vicinior. Gray Vireos are lively residents of the punishingly hot deserts of the southwestern United States and adjacent Mexico. Due to gray seal behavior, seals are also vulnerable to vehicles that drive on beaches, which is common in some areas of high gray seal density. All photographs on this site are copyrighted, and may not be used for any purpose without written authorization.copyrighted, and may … Gray above, whitish below, this species … This bird breeds in the southwestern United States, northern Baja California and western Texas. In 2020, we are currently continuing our study of Gray Vireo (GRVI; Vireo vicinior) demography at the Sevilleta National Wildlife Refuge (SNWR) in central New Mexico. The Gray Vireo is a North American passerine species of small bird, breeding throughout a wide range. Its preferred habitat is on south-facing slopes, where the chaparral is dry but dense, mainly between 3000 and 5000 feet elevation.

While its vocalizations are characteristic, a silent individual in plain gray plumage, is difficult to distinguish visually from gray gnatcatchers (Polioptila sp. Since 1940, California populations of the Gray Vireo have collapsed, presumably because of parasitism by the Brown-headed Cowbird, which invaded the vireo’s California range about 1915. Northward Range of the Gray Vireo in California.—While on a short collecting trip as guest of Mr. A. Brazier Howell, I spent the afternoon of July 25, 1922, on the west slope of Walker Pass, which is in northeastern Kern County, California, at the southern end of the main high Sierra Nevada. Range maps represent the maximum, current geographic extent of each species within California. Gray Vireo Range Map. Winters in the state only very locally (perhaps irregularly) in one canyon in the Anza-Borrego Desert. Long-tailed for a vireo, but with a typically thick bill. The vireos feed mostly on insects but will eat fruit if necessary. Gray seals are vulnerable to vessel collisions throughout their range, but the risk is much higher in some coastal areas with heavy vessel traffic. ... Gray Vireo (Vireo vicinior), version 1.0. What it lacks in color, however, it makes up for with personality, hopping around actively in the scrub, singing, and flopping its tail about. They are the Black-capped Vireo, Black-whiskered Vireo, Gray Vireo, Plumbeous Vireo, Thick-billed Vireo and the Yellow-green Vireo. This bird breeds in the southwestern United States, northern Baja California and western Texas. This bird breeds in the southwestern United States, northern Baja California and western Texas. Migration Overview. Migratory Behavior. The Gray Vireo is a North American passerine species of small bird, breeding throughout a wide range.
The Gray Vireo is a North American passerine species of small bird, breeding throughout a wide range. This bird is not as easily identified in the field, but if one can get a good enough look at this bird they may notice its blu-ish legs, hooked bill, and complete eye ring. Male Gray Vireos sing steadily during the breeding season, but the birds spend much of the rest of their time foraging for insects in dense brush, often close to the ground. Habitat in Nonbreeding Range. During colder winter months, this species migrates to northwestern Mexico, western Sonora, the southern Baja Peninsula and Baja California Sur. Gray Vireo Vireo vicinior Abundance map Data provided by eBird.