Definition of

Bird

bird on a wire

A bird is a bird.

A bird is a bird from the passerine group, which constitutes the most numerous and diverse subgroup of all the classifications of the animal kingdom: 5,700 identified species are known to date, which exceeds by several numbers the subgroup of rodents, which is the largest within the group of mammals .

It should be noted that, within the animals belonging to the group of vertebrates (endowed with an articulated internal skeleton that supports the entire organism, also allowing its movement), there are a large number of species that belong to the classification of birds and that have with a series of characteristics similar to each other.

The passerine group is divided into three suborders, which are called Passeri , Tyranni and Acanthisitti . The majority of birds are small in size, although there are exceptions, and they have a series of peculiarities that make them suitable for life despite their size and lack of physical strength.

Bird characteristics

Birds differ from the rest of the vertebrates in that they have an extremely light bone structure covered with feathers and have a pair of wings instead of forelimbs, which allow them to fly , letting themselves be carried by the various air currents and using the help of said wings to glide on them.

They can also make pleasant sounds; It is for this last reason that they are often mentioned as songbirds or perching birds. It is worth mentioning that they have a horny beak without teeth and that their reproduction occurs through eggs that they incubate until the moment they hatch.

The nests

Some birds make their nests with straw and small twigs that they collect themselves; Others use small holes in the rock to make their house and others make more elaborate constructions, mixing mud with straw. Ovenbirds, for example, build small round nests made of earth, water and twigs at high altitudes . These nests have two compartments, in one of them, the one at the bottom, the female will lay the eggs and later the chicks will hatch.

In these nests the female will lay the eggs, hatch them and keep the young safe during the first period of existence that is the most dangerous for them, where numerous dangers will lurk and must be protected with great attention.

When the birds are born they are blind and featherless and are not able to find their food, so the mother or father or in some cases both (depending on the species) goes in search of worms and berries and feeds them. in the mouth until the chicks develop, acquire wings and learn to live independently.

feathered vertebrates

Birds are vertebrate animals that have their bodies covered in feathers.

Other uses of the term bird

El Pájaro is, on the other hand, a granite cliff from La Pedriza de Manzanares , which is located in a municipality of Madrid ( Spain ).

In the field of cartoons or caricatures there is a character known as Pájaro Loco , Loquillo or Woody Woodpecker, who represents a woodpecker with somewhat crazy and aggressive behavior. This unique bird, created by cartoonist Ben Hardaway and produced by Walter Lantz , became one of the most popular cartoons in history .

Finally, we can comment that Pájaro Verde is a highly toxic alcoholic beverage produced by prisoners in Chilean prisons. Prisoners usually obtain a distillate of methyl alcohol from turpentine, varnish or paint. This distillate, toxic to humans, is mixed with cola and lemon. The Green Bird is prohibited, so its production and consumption is illegal .