When is a hawk likely to preen itself?

A hawk is likely to preen itself following a bath because preening helps to realign and clean its feathers, which can become disheveled after getting wet. Bathing is an important part of a bird's grooming routine, and preening post-bath ensures that the feathers are in optimal condition for flight, insulation, and waterproofing.

Additionally, a hawk may also preen when it is content. This behavior is often exhibited during times of relaxation or comfort, signifying that the bird feels safe and secure in its environment. Preening when content not only aids in maintaining feather health but also can serve as a calming activity.

Both scenarios demonstrate that preening is a natural and essential behavior for hawks as it contributes to their overall well-being and feather maintenance. Therefore, the combination of post-bath preening and preening during moments of contentment encompasses the correct reasoning for the answer provided.