Canada: An alarming news from the United States has revealed that over three billion birds have disappeared in North America over the past 50 years, though they are still high, but a surprising decline in the population of many birds found in North America Has really happened.
For the past 48 years, Professor Kenneth Rosenberg, an animal survival
expert at Cornell University, has reviewed bird databases from ground stations
in Canada and the United States. According to them, 529 species of birds found
in the area have decreased by 90 million in the last 30 years. According to the
initial estimates, the number of small birds of some varieties has decreased by
29% since 197
90%
of the decline has occurred in 12 families of birds, including many birds and
birds. On the other hand, the number of water fowl and raptors has increased,
due to the protection programs they have started. Experts believe that efforts
must be made to rescue other birds immediately.
The
team has also reviewed the entire continent from a radar network called Nex's
Rod, which monitors large bird movements. It can also detect the number of
migratory birds, and in the last 10 years, it has also reported a decrease in
birds by making alarm bells.
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