Steinadler

A Steinadler (pl. Steinadler; pron: SHTYN-aad-lər, Grimm: STYN-ad-lər; Germ. Stein "stone" + Adler "eagle") is a hawk-like Wesen (though in German their name means Golden Eagle).

Biology
When woged, the Steinadler's face extends outward becoming muzzle-like, while their nose curves into a beak. Sparse feather-like hair sprouts all over their body, while the hair on their head turns a silvery-grey, forming a tall crew-cut. Their eyes turn an extremely pale yellowish-green color. They are known for their high intellect and good intuition. Steinadlers are renowned for their exceptional vision. Their superior vision is a result of having five times more visual sensory cells per millimeter of the retina than humans. They also have special colored oils in their eyes that reflect certain wavelengths of light. These special ocular biologic factors endow them with near perfect night vision, and most likely a whole host of other ocular abilities. Steinadler are incredibly fast creatures but not superhuman strong.

Characteristics
The Steinadler are known for their ability to pokerfacedly exhibit simultaneously friendliness and sternness, so it is impossible to tell whose side one is on. The ability to sternly influence others as though they were subordinate friends makes the Steinadler excellent military figures. They have a reputation for being heroes and adventurers.

Excerpt from Grimm Diaries
A- Steinadler Field of Vision.

B- Binocular Foveal Vision.

C- Vertical Field Perimeter.

''D- Mocoular Foveal Vision. ''

E- Binocular Vision

''The Steinalder has five time more visual sensory cells per millimiter of retina than do humans. They also have colored oils in their eyes that refract certain wavelengths of light. This intensifies certain colors at the expense of others.''

''The visual ability of the Steinadler is legendary. Adaptations to night vision include larger eyes and large numbers of closely packed visual rods and cones.''

The distinctive brow ridge physically protects the eye from wind, dust and debris, and shields it from excessive glare.

Farley Kolt is a Steinadler who tricked two Schakale into shooting each other. He was arrested, and afterwards, told Nick about the coins, and about his relationship with Marie Kessler. Marie left Farley to take care of her sister's son, who was Nick. He assisted Nick and Hank when they tracked Soledad, realizing he killed Nick's parents. Kolt stole the coins from Renard after Soledad was apprehended. Nick later then got back the coins from Kolt.