Science, asked by hemantchouhan8245, 6 months ago

Weaver bird essay in English for 5th standard

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Answered by shrutibest
2

Answer:

Weaver bird nests are extraordinary structures.

Most individual nests are cylindrical in shape, with downward-facing, narrow entrances that are usually situated over or next to water.

Ensuring that the entrance faces downwards and is as narrow as possible deters thieves and potential predators. Some nests even have a long tube, extending the entrance further beneath the nest body.

Having selected a good location for his nest, the weaver bird starts to loop and weave strands of grass or strips of leaves around the ends of one or two branches in a tree. Having created a looped basis for the nest body, the weaver bird then builds the hollow body before adding the tubular entrance last.

The males are the main weavers, leaving the females with the responsibility of selecting their breeding-partner. They do this based on the location, design and relative comfort of the nest which ensures the good genetic quality for the father of her offspring alongside a safe home for her eggs.

Sociable weaver bird nest in Namibia, Africa

Sociable Weaver

The sociable weaver of southern Africa builds large, permanent nests for a community of birds, usually found around areas where the stiff, dry grass they use as a building material can be found. Some of these nests are the largest structures built by birds.

Usually found spread throughout the branches of certain trees, sociable weavers have also been known to take advantage of telegraph poles and other tall, man-made structures. The nests resemble a a pile of hay in the tree with entrance holes placed underneath in order to deter nest invaders.

The nests provide a more consistent environment for sociable weavers who inhabit an area whose climate can see a fluctuation of extremes. Protected from the intense heat of the day and sometimes brisk night-time temperatures, sociable weavers can raise their young and ride out extreme weather in relative comfort, all the time safe in the knowledge that they are surrounded by members of their own species. However, despite this "safety in numbers" it has been found that nest raiding can be quite high with up to 80% of young not making it to adulthood.

An environment is the natural surroundings which help life to grow, nourish and destroy on this planet called earth. Natural environment plays a great role in the existence of life on earth and it helps human beings, animals and other living things to grow and develop naturally. But due to some bad and selfish activities of the human beings, our environment is getting affected. It is the most important topic that everyone must know how to protect our environment to keep it safe forever as well as ensure the nature’s balance on this planet to continue the existence of life.

As we all are well familiar with the environment, it is everything which surrounds us naturally and affects our daily lives on the earth. Everything comes under an environment, the air which we breathe every moment, the water which we use for our daily routine, plants, animals and other living things, etc around us. An environment is called healthy environment when natural cycle goes side by side without any disturbance. Any type of disturbance in the nature’s balance affects the environment totally which ruins the human lives.

Now, in the era of advance living standard of the human being, our environment is getting affected to a great extent by the means of air pollution, noise pollution, deforestation, water pollution, soil pollution, acid rain and other dangerous disasters created by the human beings through technological advancement. We all must take an oath together to protect our natural environment to keep it safe as usual forever.

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