Birds eating insects bring direct benefit to agriculture and forestry destroying pests. Birds have a significant role in almost all ecological systems. They are also essential bio-indicators for observing and evaluating the condition of our environment. It is allowed to hunt them in autumn. The eggs of goosander have been used instead of hen's eggs by people living on a shore.
Estonian birds are in a constant change.
The number of several species decreases, some become extinct. It is connected with the lack of suitable breeding places due to human activities. At the same time some species begin to breed here more numerously, e.g. herring gull, mute swan , eider, cormorant, collared dove, bearded tit, Blyth's reed warbler, greenish warbler, scarlet rosefinch and penduline tit. Several birds have become bolder due to emerge and increase of human settlements and they have moved to live nearer and nearer to people. The use of pesticides and other chemicals in agriculture and pollution has its negative influence on Estonian birds without any doubt.