- Hoots are longer, lower-pitched calls that are typically used to communicate with other owls.
- Screeches are shorter, higher-pitched calls that are often used to alarm other owls of danger or to attract mates.
In addition to these two main types of calls, owls also make a variety of other sounds, including:
- Cackles
- Laughs
- Whistles
- Barks
- Growls
These sounds are often used to express emotions such as excitement, anger, or fear.
The vocal repertoire of an owl can vary depending on the species. Some owls, such as barn owls, have a relatively limited vocal range, while others, such as great horned owls, can produce a wide variety of sounds.