The plot of the filming tells about wood grouse birds living in the Siberian taiga, about the scientist-ornithologist Sergei Pavlovich Kirpichev, who studies wood grouses. Landscapes of taiga, rivers [Yenisei]. Grousing wood grouses. Capercaillie mother with chicks. S.P. Kirpichev in the taiga: kindles a fire, sits by the fire, watching the wood grouses. [The hunting lodge]. The porch of the house. [S.P.Kirpichev] on the porch, hanging fishing nets.