And let the birds sing. (1973)

Ornithologist P.P. Smolin tells the members of the circle of young naturalists about various species of birds (synchronously and behind the scenes), demonstrates images and stuffed birds.

Faces of young naturalists.

Stuffed birds and an atlas of birds, Smolin continues the story about the birds of the hut (synchronously and behind the scenes).

Smolin and his student on board a motor boat.

Panorama of a part of the river bank.

Smolin's face.

Smolin and his assistant get out of the boat to the shore.

Smolin and his assistant enter the forest.

Faces of young naturalists.

Smolin tells about birds to the members of the circle of young naturalists during a trip to nature.

Young naturalists watch birds through binoculars.

An owl on a branch.

A young naturalist with binoculars.

Already crawling in the grass.

A bird on a tree trunk.

A young naturalist makes notes in a notebook.

Smolin talks about the methods of teaching children throughout the existence of the Soviet school - the research method and the method of ready-made knowledge, talks about the advantages of the research method (synchronously and behind the scenes).

A young naturalist watches birds with binoculars.

A tern in the sky.

Young naturalists examine the chicks of a tern, measure one of the chicks, make notes in a notebook.

A tern in flight.

A baby tern in the hands of a young naturalist grabs a fish with its beak.

Toad's head.

A young naturalist photographs a toad sitting in the grass.

A toad in the grass.

A young naturalist makes notes in a notebook.

Young naturalists feed newborn squirrels with cotton swabs.

Young naturalists give a squirrel a tummy massage.

Smolin talks with young naturalists.

Smolit is sitting on the porch of a wooden house and stroking a cat.

One of Smolin's students A.I. Bykhov conducts a lesson of a circle of young naturalists on the bank of the river, the face of Bykhov.

Members of the circle of young naturalists at the campfire during a trip to nature.

Smolin and Bykhov talk with young naturalists, children's faces, a burning bonfire.

Smolin and Bykhov are walking along the fence in the countryside.

Smolin and Bykhov walk along the river bank, near the water's edge.

Smolin is sitting in the bow of a motor boat.

Smolin's face, trees in the water.

A tern in the sky.

Smolin works at his desk at home, makes notes from books, books on Smolin's desk.

The interior of Smolin's workroom.

Books on the shelves.

Photo Smolin among his biology students.

Photos of Smolin with young naturalists of the 1930s - 1950s.

Newsreel of the 1920s: young naturalists during a trip to nature.

Demonstration of young naturalists with mock-ups of birdhouses and images of birds.

Installing a birdhouse on a tree.

The face of a young naturalist.

Young naturalists with birdhouses in their hands.

Smolin is standing on the sidewalk waiting for the passage of transport.

Motor transport on the street.

Smolin crosses the road at a pedestrian crossing, people at the crossing.

Smolin approaches the entrance to the Darwin Museum.

Smolin examines the exhibits in one of the halls of the museum, corrects the signs with explanatory inscriptions.

Stuffed primates on display at the museum.

Smolin talks about the Earth as the only habitat of life, about the need to minimize the harmful influence of man on nature, about the fight against environmental pollution, about the success in greening Moscow, about the small number of songbirds in Moscow, about the reasons for the shortage of songbirds in Moscow, about the attitude to nature and birds in the Baltic Republics, about the dangers of pesticides (synchronously and behind the scenes).

The faces of young naturalists listening to Smolin.

Panorama of the autumn forest park, Smolin walks along the path.

Trees in the forest park.

Smolin's face.

Smolin examines the fallen leaves from the trees.

Fallen maple leaves on the surface of the water.

Smolin during a walk in the forest park.

Branches of trees with leafless leaves.

Smolin examines the branches of a shrub through a magnifying glass.

Smolin passes by the stump.

View of a part of the forest park.

Smolin's face.