Two children are at risk of losing their sight after a rogue magpie left them with severe eye injuries.

The attacks took place in Perth last weekend, and has led to calls for the magpie to be exterminated.

Four-year-old Indi and five-year-old Finn were at Clarko Reserve in the beachside suburb of Trigg when the avian attacker swooped down from the sky and went for their faces.

Each child was wounded in their right eye, with the extent of the damage unable to be determined. Finn described the bird as "naughty" after the incident.

"They had operations to repair the iris and corneas of their right eyes," Australia's 7Plus news reports, adding the "same magpie is being blamed for the savage attacks".