On july 17,2016 I was on a hilltop in southern Onondaga county,NY. taking nature photographs. It was on private property. I do not know the owners name but he gave me permission to go onto his property which was the second highest elevation in Onondaga County. While I there there I was photographing flowers and the surrounding hills and sky. I was there probably 3 -4 hours. When I got home, I uploaded my photos to my computer and noticed something in the upper left hand corner of one photo. I cropped it to look at it closer. I do not know what it is. A little research into ufos gave me some information but not enough to identify the object. Can you tell me what this is??