Look at the date and time stamp-all three taken on the same day and location! Is it the same cat or not? I tend to think the two daytime photos are of different bobcats.
well, if I had to guess I would agree that the first and third photos are the same animal, just going by the banding on the inside of the left front leg, while the middle one is different, going by the little twist in the tail... but that is of course totally uneducated speculation ...