Cooper’s hawks are known for their distinctive calls, which can vary depending on the situation. The most common call is a loud, grating cak-cak-cak, which can last for 2-5 seconds. Both males and females use this call as a defensive behavior to protect their nests from potential threats. It is a clear warning sign to intruders that they are not welcome.
Interestingly, this call is not only used for defense but also during courtship rituals. It serves as a way for the hawks to communicate with each other, expressing their presence and availability. Males often use a kik call to let their mates know where they are, acting as a form of reassurance and coordination. Females also make this call, although less frequently.
When observing a Cooper’s hawk, you may notice these vocalizations in action. The cak-cak-cak call can be quite loud and distinctive, making it easier to identify the presence of these birds in the area. It is often described as a harsh and grating sound, which can be heard over long distances.
In my personal experience, I have had the opportunity to witness the vocalizations of Cooper’s hawks while hiking in the woods. On one occasion, I stumbled upon a nest and unintentionally got too close. The female hawk immediately started emitting the cak-cak-cak call, which was loud and alarming. It was a clear indication that I was encroaching on her territory and she was defending her nest.
The intensity and frequency of the calls can vary depending on the level of perceived threat. In some instances, Cooper’s hawks may also emit screeching or screaming calls when engaged in territorial disputes or encounters with other birds of prey.
To summarize, the noise made by a Cooper’s hawk is a loud, grating cak-cak-cak call. It is primarily used for defense of the nest and during courtship rituals. Males often use a kik call to communicate with their mates. These calls are distinct and unmistakable, serving as a warning or a way to establish presence and territory.