It is a type of entertainment that is related to seeing and examining birds in nature. Bird watching is a part of ecotourism activity. In Iran, 25th of Aban is dedicated to this day. The most active seasons of the year for bird watching in the tropical region are during the spring and fall migration of birds. In these seasons, you can see the most species of birds because those birds that do not build nests in a special area migrate from north to south in these seasons and are seen among the group of migratory birds. The number of bird watchers in the world is continuously increasing, to the extent that there are more bird watchers in England and Germany than football fans. In Iran, the number of bird lovers and birdwatchers is increasing day by day. It is an international treaty for the protection of wetlands and animals and plants related to them (especially water birds), which was approved in Ramsar city in 1349. At first, this treaty was signed by the representatives of 18 participating countries. Currently, this agreement covers 2412 places with an area of more than 254 thousand hectares in 171 countries.