What behavior is a sign of a raptor feeling threatened by its surroundings?

Fluffing feathers is a behavior observed in raptors that indicates they may feel threatened or are trying to make themselves appear larger and more intimidating. When a bird fluffs its feathers, it can create the perception of increased size, which may deter potential threats. This behavior is often coupled with other signs of stress or discomfort, such as vigilance or aggressive posturing. By making themselves look bigger, raptors can ward off potential predators or rivals without engaging in direct confrontation.

The other behaviors mentioned do not necessarily indicate that a raptor feels threatened. Soaring high above the ground is typically a sign of comfort and stability, allowing the bird to survey its territory. Hiding under cover, while it might seem defensive, can also be a normal resting behavior when the raptor is in a safe environment. Maintaining a low profile can be a strategic approach in hunting or resting but does not directly indicate a feeling of threat.