Dinosaurs and the origin of birds

For many species of birds, they are very important to humans from an economic point of view. Birds and game birds are the main sources of meat, eggs and feathers. In addition, some of them, like breeding birds and parrots, are gentle pets. The stool is also a fertilizer for planting and still attracts enthusiasts to look at it, making it one of the reasons for the resurgence of ecotourism in many areas. Birds have played a major role in various human cultures and civilizations, but harmful human practices have led to their great loss and between 120 and 130 species of them have become extinct since the 17th century, of which 1200 are endangered, and from Many international and local organizations and agencies are constantly working to preserve birds and their natural habitats and remove them from the bottom.