Estonian Ornithological Society volunteers took part in the international BirdWatch event over the weekend, counting approximately 130,000 feathered migrants.
The most numerous of the species were 35,500 common chaffinches, 30,000 common wood pigeons and 20,000 common cranes, a press release from the Ornithological Society said.
While the climax of the weekend's spectacle was the masses of the cranes and pigeons, other birds had begun their journey to frost-free areas earlier.
BirdWatch was held for the 20th time this year. Over 40 European and Central Asian countries participated in the bird counting. The event aims to increase bird conservation awareness and draw people's attention to the autumn skies.