Final answer:
When you hear an owl's call in the middle of the night, it is a sign that owls are active during that time. Their calls serve various purposes, such as establishing territory, attracting mates, and warning other owls.
Step-by-step explanation:
When you hear an owl's call in the middle of the night, it is a sign that owls are active during that time. Owls are nocturnal birds that are adapted to hunt and communicate in the dark. Their calls serve various purposes, such as establishing territory, attracting mates, and warning other owls. For example, the Great Horned Owl can emit a deep hooting sound that carries far and helps them communicate with other owls in the area.
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