How do owls camouflage themselves at daytime roosts?

Owls utilize a combination of physical appearance and behavioral adjustments to achieve effective camouflage at their daytime roosts.

Their primary defense is their plumage, which is typically cryptically patterned with streaks, bars, or spots that allow the bird to blend into its surroundings, such as tree bark. Many species also possess erectile feather tufts, often called "ears" or "horns," which help break up the round outline of the head, further enhancing their concealment.1

When seeking to avoid attention while roosting—particularly if they are being harassed by smaller birds—owls employ specific postures to minimize their visibility. They compress their plumage, elevate their ear tufts, and half-close their eyes. By combining these physical changes with their bark-like coloration and patterns, the owl effectively mimics the appearance of a broken branch, making it difficult for predators or observers to detect them.2