The dogs – a German shepherd named Bo and a Belgian shepherd named Judy - are checking flights from countries where the avian flu virus has been found, including China, Thailand, Egypt, Russia and Turkey.

The dogs are specially trained to sniff out all kinds of poultry, alive or dead, as well as feathers and eggs. In Europe, only the Czech customs are working with specialised avian flu dogs.

According to the Dutch customs service, thay have already this year confiscated 1,626 kg of prepared poultry meat, 203 kg of raw poultry meat and 245 eggs.