I was in Rio de Janeiro at Urca Mountain taking pictures of Corcovado when I took one regular picture, then a second one and seconds later I took another one changing one option of light in my camera and there were that strange thing. At first I looked to see if there where anything in my lens, or if there was a bird close to me, but there were nothing. Puting zoom on the picture, I became confused. I don't have any additional information, I didn't see anything at the time, for me everything was normal. It was a bird? Could you help me to understand? I don't have answers, unfortunatly. That's why I'm asking your help. I expect to recieve your return. Thank you.First picture: 12:29:57 (local time)Second: 12:30:21 Third (with strange object): 12:30:48