Okolovodnye feathery inhabitants in the big degree regulate fauna in the water environment. The considerable part of birds eats fishes, their caviar, malkami, other water organisms and plants which serve as food to fishes and, thus, are their strong contenders.
seagulls eat Fish. They consume basically the invaluable small fish, seize it at a water surface. Gagary, cormorants, karavajki , chomgi, krohali, dives and others fish under water. Pelicans will organise collective hunting for fishes. Flights of pelicans, having settled down a semicircle, shouting also it is noisy clapping wings on water, drive fish on shoal where it and becomes their extraction.