This beautiful raptor is called the Red-Tailed Hawk (Buteo jamaicensis) & is commonly referred to as a ‘chickenhawk’ in the United States. They’re one of the largest members within the genus Buteo and displays sexual dimorphism, with females being about 25% heavier than males. They inhabit many different habitats and altitudes within North America, and are legally protected by the Migratory Bird Treaty Act. Falconers are allowed to take one bird that has left the nest, and is under a year old, and train it to serve for hunting purposes. While these raptors are hunting (and yes, they are opportunistic feeders) , they may vocalize in two-three short, rasping screams. If the scream is louder than normal, it may be out of annoyance or anger..In which case, I suggest steering clear unless you want incredibly powerful talons ripping into you. Feathers of this bird are considered sacred to Native Americans in the United States, and are often used in religious ceremonies.
Photo credit: Hard-Rain