Which species of hawk becomes aggressive as they mature to the greatest degree?

The Goshawk is known for its increasing aggression as it matures, making it the species that fits this description best. This behavior is particularly notable as young Goshawks exhibit a playful demeanor but can become significantly more assertive and combative as they progress into adulthood. This aggression is a survival trait, as adult Goshawks are skilled hunters that rely on their ability to defend their territory and secure prey.

In contrast, other species such as the Harris's Hawk tend to maintain a more social and cooperative behavior, even as they mature. Red-tailed Falcons and Prairie Falcons, while also competent hunters, do not display the same level of aggressive behavior that escalates with maturity as the Goshawk does. The aggressive behavior of the Goshawk makes it a noteworthy species in falconry, as it requires careful handling and training to ensure that falconers can manage these birds effectively. Understanding the behavioral tendencies of these hawks is crucial for anyone pursuing falconry, especially when selecting species suited for training and companionship.