Question

list the possible reasons for the decline in the sparrow population?​

Answer 1

The question has been taken from the comprehension passage on "Sparrows -Here Today and Gone Tomorrow" and the answer based on the comprehension is as follows:

Sadly, the sparrow population has alarmingly dissappearing. As a result of a decline in size, the IUCN added in 2002, along with  snow leopard, tiger and panda, a bird as frequent as sparrow, to its Red Data list of species at risk

Explanation:

There are several  reasons for the disappearance of sparrows:

• Sparrows built their nest in roofs/holes of houses. However, in the present day old/traditional houses have been replaced by stylish houses that have flat walls giving no room for sparrows to build nests and survive
• The packaged "food culture" & "supermarkets" such as food bazaar have outmoded the idea of grains being sold in open sacks in grocery stores . The main source of food from most sparrows is the "spilling of grains" from these open grain bags/ sacks  .
• Scientists believe that mobile radiation is the main cause of sparrows disappearing. Birds navigate by "sensing" the magnetic fields of the world and mobile radiation disturbs and inhibits the ability of birds to fly.
• Insects are part of the diet of baby sparrows and, because they are not able to feed their offspring because "heavy use" of "mosquito repellents" & "insecticides". This has contributed to a reduction in the  mortality rate for sparrows.
• Big birds like pigeons have been flocking masses  have now filled the limited number of spaces or troughs for constructing nests; hence are "out-dating" the "small bird population". Therefore sparrows as such do not find place to build nests

To know more

hey gus pls tell me about sparrows their basic dwelling conditions ...

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Answer 2

Answer:

Sparrows

Explanation:

Population of house sparrow is fast declining due to danger posed to their survival by a host of factors, such as, lack of nesting sites due to modern architecture of building, lack of seed food, insect food and proliferation of cell phone towers.

The reasons for the decline of the sparrow population are loss of habitat due to rapid urbanisation, diminishing ecological resources for sustenance, high levels of pollution and emissions from microwave towers.