#GREAT HORNED OWL WINGSPAN PATCH#

It is the only subspecies where the iris is amber, not yellow. subarcticus) in Manitoba Dull brownish with long bill birds from the semiarid interior of Brazil often have much white on uppertail- and ear-coverts. nigrescens and the Magellanic Horned Owl, deserves more study.

The status of this form, especially the relationships between the subpopulations and with ssp. Includes the proposed subspecies scotinus, elutus, and deserti.

South American Great Horned Owl, Bubo virginianus nacurutu ( Vieillot, 1817)Ī lowland form occurring in disjunct populations from E Colombia to the Guyanas also from Bolivia and Brazil south of the Amazonas basin to N Argentina resident all-year.

A brown form, tinged rufous and barred distinctly blackish-brown below. USA eastwards from Minnesota to Texas northeastwards to Nova Scotia and Prince Edward Island, Canada.

Common Great Horned Owl, Bubo virginianus virginianus (Gmelin, 1788).

Subspecies differences are mainly in color and size and generally follow Gloger's and Bergmann's Rules As indicated above, many of these are only examples of They are all generally allopatric though.Ī large number of subspecies have been named. Great Horned Owls can be easily confused with the Magellanic Horned Owl ( B. Young owls make hissing or screeching sounds that are often confused with the calls of Barn Owls. The female's call is higher and rises in pitch at the end of the call. Their call is a low-pitched but loud ho-ho-hoo hoo hoo sometimes it is only four syllables instead of five. There are individual and regional variations in color birds from the sub- Arctic are a washed-out, light-buff color, while those from Central America can be a dark chocolate brown. The legs and feet are covered in feathers up to the talons. The underparts are light with brown barring the upper parts are mottled brown.

Its 'horns' are neither ears nor horns, simply tufts of feathers. The iris is yellow, except the amber-eyed South American Great Horned Owl ( B.

#GREAT HORNED OWL WINGSPAN PATCH#

Great Horned Owls range in length from 18-25 inches (46–68 cm) and have a wingspan of 40-60.5 in (101–153 cm) Females are larger than males, an average adult being 22 in (55 cm) long with a 49 in (124 cm) wingspan and weighing about 3.1 lbs (1400 g).Īdults have large ear tufts, a reddish, brown or gray face and a white patch on the throat.

Great horned owl wingspan