Birds dying by the masses is becoming a recurring theme, with possibly thousands of dead and dying birds reported in Italy.
Thousands of dead blackbirds fell from the sky in Arkansas on New Year's Eve and similar incidents were reported on different days in Louisiana, Kentucky and Sweden.
The latest lot of dead birds - turtle doves - have met their end in the town of Faenza, Italy.
Many of them have a blue stain in their beaks, which has yet to be explained.
Other mass animal deaths to have occurred recently involve two million fish in Maryland, with fish deaths also reported in Brazil, New Zealand and Arkansas.
In England, 40,000 crabs have also been found washed up on beaches within the past few days.
The events are most likely unrelated, reports The Huffington Post.
Wildlife officials think fireworks probably caused the bird deaths and the mass deaths of fish and crabs could have been brought about by unusually cold weather.
The blue stains found in the mouths of the dead and dying birds in Italy could be a sign of poisoning or signs of hypoxia, suggests GeaPress.
