Name the only bird that has both eyes in front?

Answer 1

an owl

Answer 2

Owl Eyes and Vision
Of all an Owl's features, perhaps the most striking is its eyes. Large and forward facing, they may account for one to five percent of the Owl's body weight, depending on species. The forward facing aspect of the eyes that give an Owl its "wise" appearance, also give it a wide range of "binocular" vision (seeing an object with both eyes at the same time). This means the owl can see objects in 3 dimensions (height, width, and depth), and can judge distances in a similar way to humans. The field of view for an owl is about 110 degrees, with about 70 degrees being binocular vision.



By comparison, humans have a field of view that covers 180 degrees, with 140 degrees being binocular. A woodcock has an amazing 360 degree field of view, because its eyes are on the side of its head. However, less than 10 degrees of this is binocular.

An Owl's eyes are large in order to improve their efficiency, especially under low light conditions. In fact, the eyes are so well developed, that they are not eye balls as such, but elongated tubes. They are held in place by bony structures in the skull called Sclerotic rings. For this reason, an Owl cannot "roll" or move its eyes - that is, it can only look straight ahead!
The Owl more than makes up for this by being able to turn its head around, and almost upside-down. It is able to achieve this by having a long and very flexible neck, which is not always apparent, as it is hidden by feathers and the Owl's posture. An owl's neck has 14 vertebrae, which is twice as many as humans. This allows the owl to turn its head through a range of 270 degrees measured from a forward facing position.

Cross-section of an Owl's Eye

As most owls are active at night, their eyes must be very efficient at collecting and processing light. This starts with a large cornea (the transparent outer coating of the eye) and pupil (the opening at the centre of the eye). The pupil's size is controlled by the iris (the coloured membrane suspended between the cornea and lens). When the pupil is larger, more light passes through the lens and onto the large retina (light sensitive tissue on which the image is formed).
The retina of an owl's eye has an abundance of light-sensitive, rod-shaped cells appropriately called "rod" cells. Although these cells are very sensitive to light and movement, they do not react well to colour. Cells that do react to colour are called "cone" cells (shaped like a cone), and an Owl's eye possesses few of these, so most Owls see in limited colour or in monochrome.
Since Owls have extraordinary night vision, it is often thought that they are blind in strong light. This is not true, because their pupils have a wide range of adjustment, allowing the right amount of light to strike the retina. Some species of Owls can actually see better than humans in bright light.

To protect their eyes, Owls are equipped with 3 eyelids. They have a normal upper and lower eyelid, the upper closing when the owl blinks, and the lower closing up when the Owl is asleep. The third eyelid is called a nictitating membrane, and is a thin layer of tissue that closes diagonally across the eye, from the inside to the outside. This cleans and protects the surface of the eye.

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Answer 3

My answer is the owl.

"How do owls see?

An owl's eyes are huge so that they can gather more light, thus providing them excellent night vision. In fact, a Great Horned Owl's eyes are nearly as large as a man's. Unlike other birds, owl eyes look forward and therefore each eye sees the same object from two different angles. This produces three-dimensional perception, similar to humans, making it easier to detect the distance of prey, perches and branches as they fly about in the dark. Unlike a human, an owl's eyes are fixed in their sockets and cannot turn. To focus on another object, an owl must swivel its head. It can do this with amazing quickness."

Answer 4

Owls

Answer 5

Are you putting all owls in the one basket of one bird?

Answer 6

girl s, can not be colour blind because it is a fact that 90, persent girls like colour and 70 persent boys dont matter that which colour is there if a colour blind deases is in a girl so it will not activate if it is in a boy it will activate and the girl son is there so he will have to suffer from colour blind deases . if a girl have daughter so she will not suffer from the deases

Answer 7

i think it is an owl