When do raptors typically reach full size?

Raptors typically reach full size when they leave the nest. This stage, known as fledging, occurs after they have developed the necessary feathers and strength to sustain flight. At this point, they may still be learning to hunt and forage independently, but they have achieved physical maturity in terms of size.

While some species do continue to grow and gain weight after fledging, the majority of their growth is complete by this time. The other options do not accurately reflect the developmental timeline of raptors. For instance, reaching full size at six months or one year suggests ongoing growth, which is more typical in species with longer maturation periods. Five years of age is well beyond the time most raptors mature, as many species are capable of reproduction before that age. Thus, fledging represents a significant milestone in the life cycle of raptors.