Posts tagged ‘Birds’

Why do roosters crow?

Rooster

Roosters crow as a way to attract female chickens, and to tell other roosters.  “This is my territory, sty out!”  And sometimes roosters seem to crow just for the joy of it.

Every morning, right around the time the sun comes up and it starts getting lighter outside, roosters begin crowing .

All that crowing is not really meant to tell anyone the time; once roosters are awake they keep crowing all day.

Other birds wake up at dawn and sing too, and for the same reasons a rooster crows.  It’s just that roosters are much noisier when they wake up.–Dick Rogers

What is a called blooded animal?

Cold Blooded Animal

Many animals such as fish, frogs, snakes and lizards are often called “cold-blooded,” as opposed to “warm-blooded” mammals and birds.

This does not mean their blood is always cold. Unlike warm-blooded animals, they do not have built-in temperature controls that keep their bodies evenly warmed.

Instead, their body temperature is usually near that of the surrounding air or water air or water.  The cold-blooded animal is hot in hot weather, and cold in cold weather.

Many depend on the sun for their body heat. Lizards, for example bask in the sun to warm their bodies.–Dick Rogers

Why do birds molt?

Molting Bird

Feathers wear out, as clothes do, and need to be replaced. The process is called “molting.”  Birds molt their feathers at least once a year, in late summer or early fall.  Feathers are made from a substance called “keratin.”  It is basically the same material your hair is made of. 

In molting, old worn feathers drop out of their sockets in a bird’s skin and new ones grow in their place.  Some birds grow bright, new feathers for the nesting season. 

These birds molt twice a year.  Most birds molt just a few feathers at a time, so they are able to fly during molting periods.Dick Rogers

How do birds fly?

Birds Flying

Most birds are well suited for flying.  First of all, a bird has feathers and wings, and powerful muscles in its breast with which to flat them.  A bird’s body is streamlined to other little air resistance. Its bones are light in weight. Many of them are hollow and filled with air.

When a bird beats its wings downward, it produces a lifting force that holds the bird in the air.  As the wings flap downward to flight, the long wingtip feathers twist and push against the air, moving the bird forward.  The bird uses its tail feathers as a brake and as a rudder for steering. – Dick Rogers

Why are some birds more brightly colored than others?

Colored Bird

Color makes some birds stand out and helps to hide other birds.

Though there are a great many things in nature that we can explain, we can only guess why some things are as they are.

One idea – and there are many exceptions – is that birds with brighter colors spend most of their time in place where their bright colors make them stand out, so they can easily be seen by other birds of their own kind.

Birds with duller colors live mostly on or near the ground.  Their dull-colored feathers match the grass and leaves of their surroundings and make them hard to see.  This protects them from enemies.

This may also be why nature gave the duller colors to most female birds.  Since she must sit on the nest to hatch the eggs, the mother bird must be better hidden.

A male bird may court his mate by singing and displaying his flashing colors, in order to persuade the quiet little female that he is the finest bird in the world.

During the nesting time, he perches on a limb some distance from the nest.  With his bright colors, he draws all the attention to himself, and away from the nest and young ones.  – Dick Rogers

How do birds chew their food?

Birds don’t have teeth to chew with.  They grind their food up in their gizzards.  If you own a pet canary or live near a chicken farm then you may already know that birds have a very strange way of chewing their food.

Birds must swallow their food whole because they have no teeth to chew with.

Bird

Instead, the work of “chewing” is done by the gizzard, a special part of the bird’s stomach that grinds the food up.

Some birds that eat seeds and other hard food swallow small stones and gravel.  These pass into the gizzard with the food.  The strong muscles of the gizzard grind the gravel and food together.

The stones and gravel crush the hard seeds and help the bird digest the food.

It is sometimes easy to tell the kind of food a bird eats by the shape of its bill.  They chisel bill of the woodpecker is used to dig insects out of wood.  The long, spear-like bill of the heron is ideal for jabbing fish and frogs.

Finches an cardinals have short, strong bills for cracking hard shells of seeds.  And a hawk has a sharp hooked bill that is good for tearing apart the animals it catches for food. – Dick Rogers

Why do birds sing?

Singing Bird

Usually, the male bird sings to attract a mate and to warn other male birds away from its nesting territory.

People who know about birds tell us that birds sing as a way of communicating with other birds.

Birds do most of their singing during the mating and nesting season.  Male birds do almost all of the singing.

Usually, the mate bird sings to warn other male birds to say away from his nesting territory.  The same song may be used in courtship to attract the attention of the female bird.

Sometimes birds seem to sing just for the joy of making music.  Each kind of singing bird has its own song.

Thrushes and song sparrows are among the best singers, and many other birds also have beautiful songs.  Not all birds sing well.  Crows, loons, and blue jays, for examples, have unpleasant voices.

Birds often make sounds other than singing.  A mother hen chicks keep her chicks from scattering.  She gives another call that warns them of danger.  – Dick Rogers