**Description:** A massive bird of prey instantly recognizable by its white head and tail, dark brown body, and large, hooked yellow beak.
**Size & Weight:** Length of 28–40 inches with a wingspan of 6–7.5 feet. Weighs 6–14 lbs.
**Sexual Dimorphism:** Females are roughly 25% larger than males, though plumage is identical.
**Life Cycle:** Juveniles are primarily brown, gradually gaining white feathers until reaching full maturity at 4–5 years of age.
**Habitat:** Frequently seen soaring near large bodies of water like the Allegheny River or Kinzua Dam.
**Behavior:** They build the largest nests in North America—sometimes weighing up to a ton.