For Croatian diver Dorijan Curac, it was the sight of a lifetime. The diver from the town of Bakar chanced upon a strange-looking bird, resembling a heron at first glance, in Grobnicko polje outside the city of Rijeka towards the end of October 2021. He had his doubts though as he mentions in an interview to the web portal morski.hr - and on second checking and a quick search on the internet, he found out that he had made a rather momentous discovery. It turned out the bird was not a heron, but an extremely rare and endangered species the northern bald ibis.