Flamingo chicks walk in an enclosure before they are tagged in Fuente de Piedra, Spain, on Jule 19, 2014. Fuente de Piedra lagoon is a natural reserve with more than 170 different species recorded and one of the main breeding grounds for flamingos in the Iberian Peninsule. Hundreds of flamingo chicks are tagged and checked annually to record the evolution of the species. (Photo by Pablo Blazquez Dominguez/Getty Images)

Volunteers (rear) wade across a lagoon at dawn to gather flamingo chicks and place them inside a corral at the Fuente de Piedra natural reserve, near Malaga, southern Spain, July 19, 2014. Around 600 flamingos were tagged and measured before being placed in the lagoon, one of the largest colonies of flamingos in Europe, according to authorities of the natural reserve. (Photo by Jon Nazca/Reuters)

Volunteers wade across a lagoon at dawn to gather flamingo chicks and place them inside a corral at the Fuente de Piedra natural reserve, near Malaga, southern Spain, July 19, 2014. (Photo by Jon Nazca/Reuters)

Volunteers wait to wade across a lagoon at dawn to gather flamingo chicks and place them inside a corral at the Fuente de Piedra natural reserve, near Malaga, southern Spain, July 19, 2014. (Photo by Jon Nazca/Reuters)

A flamingo and flamingo chicks are seen in a corral before being tagged at dawn at the Fuente de Piedra natural reserve, near Malaga, southern Spain, July 19, 2014. (Photo by Jon Nazca/Reuters)

Volunteers wade across the lagoon at dawn to gather flamingo chicks and place them inside a corral at the Fuente de Piedra natural reserve, near Malaga, southern Spain, July 19, 2014. (Photo by Jon Nazca/Reuters)

Volunteers (rear) wade across a lagoon at dawn to gather flamingo chicks and place them inside a corral at the Fuente de Piedra natural reserve, near Malaga, southern Spain, July 19, 2014. (Photo by Jon Nazca/Reuters)

Volunteers wade across a lagoon at dawn to gather flamingo chicks and place them inside a corral at the Fuente de Piedra natural reserve, near Malaga, southern Spain, July 19, 2014. (Photo by Jon Nazca/Reuters)

Beatriz Escudero, 30, a volunteer, huddles from the cold in a lagoon as she waits to gather flamingo chicks at dawn and place them inside a corral at the Fuente de Piedra natural reserve, near Malaga, southern Spain, July 19, 2014. (Photo by Jon Nazca/Reuters)

A volunteer looks at a flamingo inside a corral at the Fuente de Piedra natural reserve, near Malaga, southern Spain, July 19, 2014. (Photo by Jon Nazca/Reuters)

Natalia Pozo, 21, holds a flamingo chick before it is fitted with an identity ring at the Fuente de Piedra natural reserve, near Malaga, southern Spain, July 19, 2014. (Photo by Jon Nazca/Reuters)

A flamingo chick avoids a tagging control in Fuente de Piedra, on Jule 19, 2014. (Photo by Pablo Blazquez Dominguez/Getty Images)