Long-Eared Owl
Asio otus

The Long-Eared Owl inhabits dense vegetation next to open grassland or shrub-land, and open forests across North America and Eurasia.
Long-Eared Owls often use crow and raven nests to raise their young. Their primary prey of choice is small mammals, but in lean times they will take birds and insects for nourishment.
Owls have specialized ears, set asymmetrically on their head, one side higher than the other. This gives them three-dimensional hearing. The Long-Eared Owl’s ears are more highly developed than most of their peers.
Science recognises four subspecies (some say six) of Long-Eared Owl in two groups:
- A. o. wilsonianus lives in the east from southeastern Canada to northern Oklahoma and Virginia. They spend winters in Mexico.
- A. o. tuftsi in the west lives from western Canada to northern Mexico.
- A. o. otis lives in Eurasia.
- A. o. canariensis lives only on the Canary Islands.
My only meetings with this species have come in the deserts of southern California. The first encounter was in the Anza-Borrego, and the second was from further north in the Mojave.
10 Photos

Long-eared Owl(Asio otus) |
Description: Tamarisk Grove in the Anza-Borrego State Park. San Diego County, California. |
Date Taken: 2011:03:12 12:07 |
Location:
Tamarisk Grove |
Camera Information: NIKON D3X, 550 mm, f/9.0, 1/30 |
File Name: JCD6840-LongEaredOwl |
© 2011 - Jack Daynes - shadeTree Imaging |


Long-Eared Owl(Asio otus) |
Description: Tamarisk Grove in the Anza-Borrego State Park. San Diego County, California. |
Date Taken: 2011:03:12 12:13 |
Location:
Tamarisk Grove |
Camera Information: NIKON D3X, 550 mm, f/9.0, 1/25 |
File Name: JCD6871-LongEaredOwl |
© 2010 Jack Daynes, shadeTree Imaging |


Long-Eared Owl(Asio otus) |
Description: Horse Thief Springs on the northeastern flanks of the Kingston Mountains is one of the Joseph Grinnell restudy locations taken on by the San Diego Natural History Museum. The site is roughly between Death Valley and Las Vegas Nevada. |
Date Taken: 2017:05:26 17:00 |
Location:
Mandolin |
Camera Information: NIKON D5, 800 mm, f/8.0, 1/800 |
File Name: LongEaredOwl_D5X3655-Flegling |
© 2017 Jack Daynes, shadeTreeImaging.com |


Long-Eared Owl(Asio otus) |
Description: Horse Thief Springs on the northeastern flanks of the Kingston Mountains is one of the Joseph Grinnell restudy locations taken on by the San Diego Natural History Museum. The site is roughly between Death Valley and Las Vegas Nevada. |
Date Taken: 2017:05:26 17:08 |
Location:
Mandolin |
Camera Information: NIKON D5, 800 mm, f/8.0, 1/400 |
File Name: LongEaredOwl_D5X3798-Flegling |
© 2017 Jack Daynes, shadeTreeImaging.com |


Long-Eared Owl(Asio otus) |
Description: Horse Thief Springs on the northeastern flanks of the Kingston Mountains is one of the Joseph Grinnell restudy locations taken on by the San Diego Natural History Museum. The site is roughly between Death Valley and Las Vegas Nevada. |
Date Taken: 2017:05:26 17:05 |
Location:
Mandolin |
Camera Information: NIKON D5, 800 mm, f/8.0, 1/640 |
File Name: LongEaredOwl_D5X3754-Flegling |
© 2017 Jack Daynes, shadeTreeImaging.com |


Long-Eared Owl(Asio otus) |
Description: Horse Thief Springs on the northeastern flanks of the Kingston Mountains is one of the Joseph Grinnell restudy locations taken on by the San Diego Natural History Museum. The site is roughly between Death Valley and Las Vegas Nevada. |
Date Taken: 2017:05:26 17:05 |
Location:
Mandolin |
Camera Information: NIKON D5, 800 mm, f/8.0, 1/2000 |
File Name: LongEaredOwl_D5X3747-Flegling |
© 2017 Jack Daynes, shadeTreeImaging.com |


Long-Eared Owl(Asio otus) |
Description: Horse Thief Springs on the northeastern flanks of the Kingston Mountains is one of the Joseph Grinnell restudy locations taken on by the San Diego Natural History Museum. The site is roughly between Death Valley and Las Vegas Nevada. |
Date Taken: 2017:05:26 17:05 |
Location:
Mandolin |
Camera Information: NIKON D5, 800 mm, f/8.0, 1/400 |
File Name: LongEaredOwl_D5X3729-Flegling |
© 2017 Jack Daynes, shadeTreeImaging.com |


Long-Eared Owl(Asio otus) |
Description: Horse Thief Springs on the northeastern flanks of the Kingston Mountains is one of the Joseph Grinnell restudy locations taken on by the San Diego Natural History Museum. The site is roughly between Death Valley and Las Vegas Nevada. |
Date Taken: 2017:05:26 17:00 |
Location:
Mandolin |
Camera Information: NIKON D5, 800 mm, f/8.0, 1/500 |
File Name: LongEaredOwl_D5X3662-Flegling |
© 2017 Jack Daynes, shadeTreeImaging.com |


Long-Eared Owl(Asio otus) |
Description: Horse Thief Springs on the northeastern flanks of the Kingston Mountains is one of the Joseph Grinnell restudy locations taken on by the San Diego Natural History Museum. The site is roughly between Death Valley and Las Vegas Nevada. |
Date Taken: 2017:05:25 16:35 |
Location:
Mandolin |
Camera Information: NIKON D5, 800 mm, f/8.0, 1/800 |
File Name: LongEaredOwl_D5X3559-Fledgling |
© 2017 Jack Daynes, shadeTreeImaging.com |


Long-Eared Owl(Asio otus) |
Description: Horse Thief Springs on the northeastern flanks of the Kingston Mountains is one of the Joseph Grinnell restudy locations taken on by the San Diego Natural History Museum. The site is roughly between Death Valley and Las Vegas Nevada. |
Date Taken: 2017:05:25 16:31 |
Location:
Mandolin |
Camera Information: NIKON D5, 800 mm, f/8.0, 1/640 |
File Name: LongEaredOwl_D5X3540-Fledgling |
© 2017 Jack Daynes, shadeTreeImaging.com |

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