At the end of autumn, when the river rises in the estuary, the amount of silt on it is only one and a half to two inches. Everything else is sand. Before winter, a variety of grasses and shrubs begin to grow in such silty wet areas. Of these, Uri grass, Durba grass, Mutha of two-three species, Vadali or Vadail, reed and flax are more.
These grasses (when they rise only a few centimeters above the soil) are very soft. Its soft grass and roots are very popular with migratory ducks and swans. And inside or around the silt are thousands of insects, worms, and earthworms, as well as groups of such invertebrates. Thousands of kilometers to the north of the country, from which hundreds of thousands of estuaries or wetland birds (wetland birds) come, this is the list of food served by nature.
On the early morning of November 20, when seven or eight of us reached Char near the ship anchored off the island anchored near Nijhum Island, there were thousands of birds chirping in the air like the humming of birds in the bazaar. The fog was so light that nothing could be seen from 50 meters away. But the chirping of birds was getting deeper and deeper.
We were accompanied by the newly appointed Ambassador of the Netherlands to Bangladesh, Anne Gerard van Leuven. He has been a bird lover since adolescence. The ambassador was the first to say that among the birds chirping in the distance, you could hear the call of a duck named Lalshir or Vision. I was not really familiar with this post. The ambassador also said that Lalshir roamed the remote areas from their city.
The chirping of birds continued to increase as the sun appeared along the horizon. We stopped the speedboat at a certain boundary and tried to estimate the number of birds. It was attended by Rajib Rashedul Kabir, a wildlife researcher from the Forest Department and Sabit Hasan, a bird researcher from the Isabella Foundation. We all went there at the behest of Isabella and the ambassador was with her companions to see the projects being carried out in the coastal areas funded by their own country. Bird watching was a bonus for both parties, although it was also part of a bird count for Isabella.
It can be said that the number of Lalshir was about two thousand. I also saw hundreds of Pyong ducks or gadwals, the equivalent of bhunti ducks or turquoise ducks, some ducks or malards, pantamukhi or khunte-lip ducks or shovelers, and patari ducks or Eurasian teal. However, the Rangamuri or Red-crested Porchad seen in Tanguar Haor and the Black Coot or Waterfowl were not at all.
Redness comes in early winter and goes away in February. They live in the northernmost part of the continents of Asia and Europe, during the summer-monsoon and autumn seasons. Building a nest there, raising children and raising them, they almost all travel south.
When the snow starts to fall and freeze in the northern countries at the beginning of autumn and winter, then the journey of all the birds living there with the red deer starts towards the less winter countries of the south. Because, in the southern countries it gets cold, but not usually frozen.
Redheads spread to several countries in Africa, including Europe and Asia. A group of them comes to our country every year. In Bangladesh, IUCN and the Bangladesh Bird Club wear rings on the legs of migratory birds, and a number of other species of birds, including redheads,
