Confidence votes 210. Antigone is considered a tragic hero, because tragic heroes have several qualities: They are royal, they have a tragic flaw that leads to their downfall, they have an unhappy ending, and lastly the character is worthy of concern. First, Antigone is royalty. This is shown through her bloodline in several ways.
The down feathers of eider ducks provide insulation due to lack of barbules and ability to fluff. Infrared image of a goose, showing its insulating capacities. Down feather structure is important for insulating properties. Eiders insulate their arctic nests with down feathers. Click/tap images for attribution and license information.
Tail feathers are balanced left and right of the center. Flight feathers have a wider and narrower side. This makes them better for flying because they can cut through the air with very little resistance (also called drag). Other types of feathers are made for use on the body of the bird. The downy feathers that are good for warmth are shown on the far right. Semiplume feathers also help to keep birds warm and they help water birds float. The bristle feathers are found around the eyes and nostrils, and for some birds that like to catch flying insects they can be seen around their mouths.