Identifying a redtail can often be confusing. In many such cases, the process of elimination will often be the most helpful determination. In their search for prey, redtails are often seen soaring our skies using updrafts and thermals. Wing-flapping uses energy, therefore redtails flap as little as possible relying on winds and air temperature to carry them as they hunt for food. More often than not, redtails are seen on telephone poles, haystacks, or fence posts for hours.
Redtails generally breed in their third year.
Mated pairs build large, stick nests usually in deciduous trees. The inside of the nest resembles a tiny cup, lined with fresh green twigs. One to four eggs are laid in April or May, with incubation being 30 to 35 days. Youngsters fledge in 5 to 6 weeks, at which time they join their parents in hunting. For a juvenile redtail, this stage is very important.