Why is it illegal to keep certain raptor species without a license?

Keeping certain raptor species without a license is illegal primarily because some species are protected by law due to conservation efforts. Many raptors, such as eagles, hawks, and owls, are considered at risk or threatened, and laws like the Migratory Bird Treaty Act and other wildlife protection regulations aim to ensure their preservation and prevent exploitation. These laws are in place to maintain biodiversity, protect ecosystems, and support conservation initiatives, making it essential for individuals to obtain the necessary permits to own or rehabilitate these birds legally. This ensures that their populations are not detrimentally impacted and that their habitats are preserved.

The other options touch on important aspects of raptor care and management, but they do not represent the primary legal reasoning for the licensing requirement. Specialized training is important for responsible handling, and while raptors can be challenging to care for, and some exhibit aggressive behavior, these factors do not fundamentally justify the legal restrictions focused on conservation and species protection.