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The bald eagle is placed in the genus Haliaeetus (), and gets both its common and specific scientific names from the distinctive appearance of the adult's head. Bald in the English name is from an older usage meaning "having white on the face or head" rather than "hairless", referring to the white head feathers contrasting with the darker body. [4]
While few comprehensive measurements of the talon size of wild crowned eagles are known, one female museum specimen reportedly had a hallux-claw (or hind claw, which is the largest talon on accipitrids) of 6.2 cm (2.4 in), [26] while another female was measured at 5 years of age, the age of sexual maturity, 5.74 cm (2.26 in) in the hallux-claw ...
Courtship (sage grouse), including aerial courtship (bald eagles) [3] Building nests (with help from the bill) [1] Preening and cleaning. [10] Sometimes birds use a special claw (for example, barn owls have a so-called "feather comb"). Some herons and nightjars use the claw for cleaning the head. [2]
The supporter of the shield is a bald eagle with its wings outstretched (or "displayed", in heraldic terms). From the eagle's perspective, it holds a bundle of 13 arrows in its left talon, and an olive branch in its right talon. Although not specified by law, the olive branch is usually depicted with 13 leaves and 13 olives.
Eagle is the common name for the golden eagle, bald eagle, and other birds of prey in the family of the Accipitridae. Eagles belong to several groups of genera, some of which are closely related. True eagles comprise the genus Aquila. Most of the 68 species of eagles are from Eurasia and Africa. [1]
Once located, prey is captured by diving. Eagles sometimes hunt by standing in or near shallow water on a sandbank, spit, or ice-floe, grabbing passing fish. Compared with its white-tailed and bald eagle relatives, Steller's sea eagle reportedly is a more "aggressive, powerful, and active" raptor. [30]
Examples of heraldic eagles of the 13th to 16th centuries, from Hugo Gerard Ströhl's Heraldischer Atlas. The eagle is used in heraldry as a charge, as a supporter, and as a crest. Heraldic eagles can be found throughout world history like in the Achaemenid Empire or in the present Republic of Indonesia.