Fireworks can cause stress to birds in the wild, study suggests

Greylag geese at Almsee in Austria (Anglian Ruskin University/PA)

Fireworks can cause stress to birds in the wild, a study of Greylag geese in Austria suggests.

Researchers fitted temporary transmitters to 20 wild Greylag geese at Almsee, a lake in Upper Austria which is close to villages that hold midnight fireworks displays to mark the new year.