Hawks typically do not hunt in flocks, as they are solitary hunters by nature. However, there are some instances where hawks do form flocks, known as a kettle, for the purpose of hunting.
When hawks do gather in a kettle, it is usually to take advantage of the thermal air currents. These warm air currents, also known as thermals, are created when the sun heats the Earth’s surface, causing the air above it to rise. Hawks can use these thermals to gain altitude without exerting much energy, allowing them to conserve energy while they search for food.
The process of forming a kettle begins with one hawk locating a thermal and soaring upwards. Other hawks in the vicinity then notice this and join in, using the same thermal to ascend into the sky. This cooperative behavior allows them to stay aloft for extended periods of time, as they can take turns leading the flock while conserving energy.
By soaring high above the ground, hawks in a kettle have a better vantage point to spot potential prey. While one hawk may be actively searching for food, others will be on the lookout for any movement or signs of potential prey below. Once a target is spotted, the hawks will break away from the kettle and descend rapidly to capture their prey.
It is important to note that hunting in flocks is not the primary hunting strategy for hawks. They are highly efficient hunters on their own, relying on their keen eyesight and agility to catch prey. However, in certain situations, such as during migration or in areas with abundant food sources, hawks may form temporary flocks to increase their hunting success.
In my personal experience, I have witnessed hawks gathering in kettles during fall migration. As a birdwatcher, I often spend time observing birds of prey, including hawks, during their seasonal movements. During fall migration, hawks utilize thermals to gain altitude and navigate long distances. I have seen groups of hawks circling together in the sky, taking advantage of the thermals to soar effortlessly. It is an impressive sight to witness these magnificent birds working together in their hunt for food.
To summarize, while hawks are typically solitary hunters, they may form flocks or kettles in certain situations to assist in hunting. By utilizing thermals, they can conserve energy and maintain a higher vantage point to locate prey. However, hunting in flocks is not their primary strategy and is more commonly observed during migration or in areas with abundant food sources.