<Ul> <Li> Desert great horned owl, Bubo virginianus pallescens (Stone, 1897) </Li> </Ul> <Li> Desert great horned owl, Bubo virginianus pallescens (Stone, 1897) </Li> <Dl> <Dd> San Joaquin Valley southeastwards through arid regions of southeastern California and southern Utah eastwards to western Kansas and southwards to Guerrero and western Veracruz in Mexico; intergrades with pacificus in San Diego County, if not elsewhere; vagrant individuals of saturatus and the Rocky Mountains population, which look similar to intergrades, also seem to occur in its range . Resident all - year . This race is likely synonymous with melanocercus . </Dd> <Dd> A pale dusky buff form with indistinct barring, especially on the underside . Darker individuals tend to have a deeper fulvous base to their upper sides . Humeral area is umber in color and the feathers of the feet are white and usually unmarked . A small race, it averages slightly larger in wing length than pacificus but weighs less on average . The wing chord length is 318--367 mm (12.5--14.4 in), averaging 337.2 mm (13.28 in), in males and 332--381 mm (13.1--15.0 in), averaging 348.9 mm (13.74 in), in females . Body mass ranges from 724 to 1,257 g (1.596 to 2.771 lb), averaging 914.2 g (2.015 lb), in males and from 801 to 1,550 g (1.766 to 3.417 lb), averaging 1,142.2 g (2.518 lb), in females . In both sexes, tail length is 190 to 235 mm (7.5 to 9.3 in) and bill length is 33 to 43 mm (1.3 to 1.7 in). </Dd> </Dl> <Dd> San Joaquin Valley southeastwards through arid regions of southeastern California and southern Utah eastwards to western Kansas and southwards to Guerrero and western Veracruz in Mexico; intergrades with pacificus in San Diego County, if not elsewhere; vagrant individuals of saturatus and the Rocky Mountains population, which look similar to intergrades, also seem to occur in its range . Resident all - year . This race is likely synonymous with melanocercus . </Dd>

What does a great horned owls nest look like