If you've been fully vaccinated with all five routine doses, an additional dose of the tetanus vaccine is usually still recommended as a precaution if you're travelling to an area with limited medical facilities and your last dose of the vaccine was more than 10 years ago. Read more about travel vaccinations.
The hoot is a very recognizable owl call. Great horned owls are especially known for their hooting sound, which involves two short, deep âhooâ sounds followed by a long âhooooooo.â This sound is usually territorial and can be heard for several miles. Both male and female owls hoot, but male hoots are usually deeper than females.
(The ear tufts of some owls, such as the great horned and long-eared owls, have nothing to do with hearing.) The facial disk itself serves to focus sound waves into the ears. Strangely, the ear opening on the right is higher than the one on the left, allowing each ear to receive sound from a slightly different angle.