The Transhumance Festival returns to the streets of Madrid, a traditional event with thousands of sheep filling the main roads of the Spanish capital.

A young girl tries to touch one of the sheep as they pass through the city center for the annual Transhumance Festival in Madrid, Spain, Oct. 24, 2021.

Since 1994, this event claims the role of transhumance and extensive livestock farming as a tool for conserving biodiversity and fighting climate change.

A flock of sheep heads to the city center for the annual Transhumance Festival in Madrid, Spain, Oct. 24, 2021.

Three shepherds guide a flock of sheep as it passes through the streets during the Transhumance Festival, Spain, Oct. 24, 2021.

Spanish actor Sergio Pazos and men guide a flock of sheep through the streets during the Transhumance Festival, Spain, Oct. 24, 2021.

A young shepherd guides a flock of sheep as it passes through the streets, Spain, Oct. 24, 2021.

A flock of sheep walks down the streets of Madrid during the Transhumance Festival, Spain, Oct. 24, 2021.

A lamb follows the flock through the streets in Madrid, Spain, Oct. 24, 2021.

Some goats accompany the flock of sheep during the Transhumance Festival, Spain, Oct. 24, 2021.

Sheep and goats stand on the streets of Madrid during the Transhumance Festival, Spain, Oct. 24, 2021.

Women wearing traditional clothes dance during the Transhumance Festival, Spain, Oct. 24, 2021.

Shepherds lead a flock of sheep to the city center for the annual Transhumance Festival, Spain, Oct. 24, 2021.

A boy touches one of the sheep as they pass through the city center for the annual Transhumance Festival, Spain, Oct. 24, 2021.

Sheep are seen in the city center for the annual Transhumance Festival, Spain, Oct. 24, 2021.

Sheep are seen in the city center as they rush behind their shepherds, Spain, Oct. 24, 2021.

A young shepherd guides a flock of sheep as it passes through the streets during the Transhumance Festival, Spain, Oct. 24, 2021.

A flock of sheep walks through the streets during the Transhumance Festival, Spain, Oct. 24, 2021.

A shepherd guides a flock of sheep as they pass historical buildings in Madrid, Spain, Oct. 24, 2021.

A flock of sheep passes through the streets during the Transhumance Festival, Spain, Oct. 24, 2021.

A flock of sheep with some goats sprinkled in head to the city center for the annual Transhumance Festival, Spain, Oct. 24, 2021.