Kodiak bear
An average adult male measures in length, and stands tall at the shoulder. The largest recorded wild male weighed , and had a hind foot measurement of . A large male Kodiak bear stands up to tall at the shoulder, when it is standing on all four legs. When standing fully upright on its hind legs, a large male could reach a height of . The largest verified size for a captive Kodiak bear was for a specimen that lived at the Dakota Zoo in Bismarck, North Dakota. Nicknamed "Clyde," he weighed when he died in June 1987 at the age of 22. According to zoo director Terry Lincoln, Clyde probably weighed close to a year earlier. He still had a fat layer of when he died.
Bald eagle
The size of the bird varies by location and generally corresponds with Bergmann's rule, since the species increases in size further away from the Equator and the tropics. For example, eagles from South Carolina average in mass and in wingspan, smaller than their northern counterparts. One field guide in Florida listed similarly small sizes for bald eagles there, at about . Of intermediate size, 117 migrant bald eagles in Glacier National Park were found to average but this was mostly (possibly post-dispersal) juvenile eagles, with 6 adults here averaging . Wintering eagles in Arizona (winter weights are usually the highest through the year since like many raptors they spend the highest percentage of time foraging during winter) were found to average . The largest eagles are from Alaska, where large females may weigh more than and span across the wings. A survey of adult weights in Alaska showed that females there weighed on average , respectively, and males weighed against immatures which averaged and in the two sexes. An Alaskan adult female eagle that was considered outsized weighed some . R.S. Palmer listed a record from 1876 in Wyoming County, New York of an enormous adult bald eagle that was shot and reportedly scaled . Among standard linear measurements, the wing chord is , the tail is long, and the tarsus is . The culmen reportedly ranges from , while the measurement from the gape to the tip of the bill is . The bill size is unusually variable as Alaskan eagles could be up to twice the bill length of "southern birds" (i.e. from Georgia, Louisiana, Florida), with means in between the sexes of and in culmen length, respectively, from these two areas.
The call consists of weak staccato, chirping whistles, "kleek kik ik ik ik", somewhat similar in cadence to a gull's call. The calls of young birds tend to be more harsh and shrill than those of adults.