Great Horned Owl visits Lawson Nature Reserve

Thanks to Megan Leedham for sending these photos from our December 2020 bird count.  With its long, earlike tufts, intimidating yellow-eyed stare, and deep hooting voice, the Great Horned Owl is the quintessential owl of storybooks.  It is one of the most common owls in North America, equally at home across all landscapes – wetlands, forests, grasslands, backyards, cities and almost any other semi-open habitat between the Arctic and the tropics.   The great horned owl remains so widely distributed and remarkably tolerant of major habitat disturbance by people that its future seems secure.  It is listed as “Least Concern (Population stable).  However, it is always exciting when we see a bird of prey of this stature on our property.

Cool Facts:

  • Great Horned Owls are fierce predators that can take large prey, including raptors such as Ospreys, Peregrine Falcons, Prairie Falcons, and other owls. They also eat much smaller items such as rodents, frogs, and scorpions.
  • When clenched, a Great Horned Owl’s strong talons require a force of 28 pounds to open. The owls use this deadly grip to sever the spine of large prey.
  • If you hear an agitated group of cawing American Crows, they may be mobbing a Great Horned Owl. Crows may gather from near and far and harass the owl for hours. The crows have good reason, because the Great Horned Owl is their most dangerous predator.
  • Even though the female Great Horned Owl is larger than her mate, the male has a larger voice box and a deeper voice. Pairs often call together, with audible differences in pitch.
  • Great Horned Owls are covered in extremely soft feathers that insulate them against the cold winter weather and help them fly very quietly in pursuit of prey. Their short, wide wings allow them to maneuver among the trees of the forest.
  • Great Horned Owls have large eyes, pupils that open widely in the dark, and retinas containing many rod cells for excellent night vision. Their eyes don’t move in their sockets, but they can swivel their heads more than 180 degrees to look in any direction. They also have sensitive hearing, thanks in part to facial disc feathers that direct sound waves to their ears.

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