Question

possible reasons for the decline in the sparrow population?

Answer 1

Answer:

Explanation:

pollution and food requirement

Answer 2

Reasons for the decline in the sparrow population.

Explanation:

Over the last few decades, however, household sparrow populations have decreased in many cities and towns around the world.

The most commonly mentioned reasons for these declines are lack of food, especially invertebrates, and fewer nesting sites and shelters.

• House-sparrow population declines are reported from different parts of the world with multiple populations.
• Decline in insect food badly affects the survival of young chicks and their population can be increased by providing more insects.
• Poison residues from contaminated food grains also have devastating effects on sparrows.
• Hygienic practices of modern man in fear of bird droppings keeps away birds like sparrows from houses by fixing nets in the windows and ventilation.

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