Hello Hivebuzz family.
Birds are warm-blooded, feathered vertebrates of the class Aves with modified forewings. Their brains are relatively large, their eyesight is sharp and their hearing is keen, but their sense of smell is low. Instead of heavy jaws and teeth, the bird has a strong beak and hollow bones and air sacs in other parts of the body to make the bird lighter. Birds originated in the Jurassic period about 15 million years ago. The idea arose from the discovery of the oldest known bird fossil, Archeopteryx lithographica (found in Bavaria, southern Germany, in 1861). This bird lived about 20 million years ago at the end of the Jurassic period. Although Archeopteryx is related to birds, most of its bone structure is similar to that of theropod dinosaurs.
Famous singer Lata Mangeshkar sang, 'O Mor Myna Go, because of whom you are alone? Who is Bihne Bihne Divanishi Je Utla?' It is not known whether singer Lata Mangeshkar knew the secret of Myna Pakhi's Utla. However, a group of researchers has revealed the technique of why hummingbird, the world's fastest bird, how it flaps, how it flies, how it dances like a bee.
According to them, while other birds fold their wings in flight, hummingbirds cannot. These birds fly with two tricks like sidestepping and running at the speed of a bullet. But how hummingbirds navigate through thickets remains a mystery.
Migratory bird expert Sarwar Alam Dipu has researched these birds. He says that the information that these birds come from Russia and Siberia is not correct.
Rather, the birds come mainly from northern Mongolia, a part of Tibet, parts of China, Russia and the tundra region of Siberia. That is, from the North Pole, some areas of Europe and Asia and the surrounding areas of the Himalayas, the birds travel a long way to India and Bangladesh where relatively less cold falls and food is available.
Again at the end of March, when the heat starts falling in the region and the snow melts in the winter areas, the birds return to their home areas after a long journey.
"The place where the birds come from will be covered in snow in winter and there will be food shortage. That's why some birds come to the area to find a suitable area to live. They will go back again at the end of March," he told BBC Bengal.
According to him, in some areas of India too, migratory birds are seen making short-term abodes. However, apart from Bangladesh and India, these birds are also seen in two areas of Nepal.
There are 1,180 species of which only 5,000 birds survive. Postdoctoral fellow Kari Kellgan of the University of South Wales in Australia counted the birds. He said that many rare species of birds can be seen in the deep forests of Amazon.
Professor Monirul said, "This year there will be various competitions in the fair. These include inter-college birding competition, bird photo exhibition, bird drawing competition for children and teenagers, bird watching by children and teenagers with telescope and binoculars, bird photo and magazine exhibition, inter-college bird recognition competition and birding open to all. Quiz Competition.”
Besides, Big Bird Bangladesh Award, Scientific Publication Award and Conservation Media Award will be given, he said.
School level students can participate in bird drawing competition for children and teenagers. There will be two groups, Group 'A': Nursery to Class II and Group 'B': Class III to Class V. Competitors should register by 8.30 am on the day of the fair and carry their respective school identity cards.
Everyone including school-college-university level students can participate in bird quiz competition.
In inter-university bird recognition competition (audio-video) the name of the bird is to be said by watching the video and listening to the call. Two teams from each university can participate. Each team will have two students
Migratory birds find absolute shelter in Sylhet, which is rich in rivers and mountains. Migratory birds can be seen in Hakaluki Hawar spread across Sylhet Division, Baikka Bill of Moulvibazar.
Apart from this, Hail Howard and Patrakhola Lake, Sunamganch's Tanguar Howard and Roa Beel become lively every year with the call of migratory birds.
Islands of Chittagong
Sandip, Orir Char and Charandwip in the port city of Chittagong are popular bird-watching spots for migrants.
Apart from this, Nijhum Dwip, Hatia Dwip, Char Osman or Shahebanichar, Char Pia, Boyar Char and Charbhata of Noakhali district under Chittagong Division have become widely known.
Maheshkhali and Sonadia in the tourist town of Cox's Bazar, St. Martin's Island in Teknaf, Shahpari's Island and Waikong are also filled with colorful migratory birds during the winter.
Apart from this, flocks of migratory birds are seen every winter at Bhitgarh and Padma pastures in Panchagarh. Kalamkandar Haor of Netrakona in central region, Nikli Haor of Kishoreganj and Kaladia are also well known for the sighting of migratory birds.
According to government estimates, there are 12 sanctuaries across the country for the free movement of migratory birds. But the very sad thing is that what is actually meant by sanctuary has not been fully developed till date.
According to section 26 of the Bangladesh Wildlife Act of 1974, hunting and killing of birds is a punishable offence.
Despite this law, migratory birds are being hunted illegally. Not only that, by indiscriminate killing of trees, excessive application of pesticides to crops
Thanks all of you guys.