IUCN Red List Status:

Least Concern

For more information visit:


Although a very large owl, small rodents are their primary prey (80 to 90% of diet). Other mammals taken include rats, mice, shrews, squirrels, rabbits, chipmunks, moles, and weasels.


Great Grey Owls inhabit a range of forested habitats ranging from coniferous forests along the Arctic treeline to mixed conifer forests in the Sierra Nevada Mountains.

Fun Fact

The Great Grey Owl is 60-83 centimeters high, with a wing span of 137-152 centimeters.


Captive owls may live up to 40 years of age.

One of the world’s largest owls, the Great Grey Owl (strix nebulosa) is dark grey overall interspersed with bars and flecks of light grey and white. The feathers of the facial disk help direct sounds toward the ear openings that are hidden by feathers.

Population: Not threatened or endangered.

Behaviour: These owls are active at night, but also at dusk and just before dawn. They fly with soft, slow wingbeats and generally do not often move more than short distances between perches, and seldom glide. They fly close to the ground, usually less than 6 metres (20 feet) up, except when flying to a nest.

Make a one-off donation

Hello everyone. We need your help and support now more than ever. The pandemic has been tough and whilst we hope to be out of lockdown soon we are facing a huge shortfall.

More of our animals you may like to meet

Park News

Gardens blog: the big plant-out

Gardens blog: the big plant-out

The animals will always be the stars of the show at Beale Wildlife Park – but there are many who take pleasure too from the beautiful gardens and grounds. Our new head gardener, Gillie Davis, is...

read more
Right Royal Jubilee Party

Right Royal Jubilee Party

Join us for a four-day party to celebrate the Queen’s Platinum Jubilee, including Berkshire’s biggest ever teddy bears’ picnic.   Berkshire’s biggest ever teddy bears’ picnicBring a soft toy...

read more