Description

I received these photos from one of my readers, who took the picture while walking on a mountain trail. She is convinced that there was nothing there at the time, and it definitely isn't a plane because it would have been heard. The object seems to resemble a butterfly, but the shape of the wings doesn't match. It is also strange that it is dark like the rest of the landscape. Could it be some kind of bird? Please help solve this mystery. Thank you.

The photo was taken on July 27, 2024, at 10:41 AM in the Slovak Tatras, on the way to Popradské Pleso.