Is this the tail tip of a big cat?

When i first checked these pictures way back in febuary the cam had been triggered by something out of shot.The field of view of trail cameras is very narrow and this isn,t unusual,noticing this black streak at the bottom of the (second)picture i thought it may of been a smudge on the lens,again not unusual however a few weeks later i found a badger skull and then clawmarks up a tree(already blogged.Then,2 further sightings one of which the same night and 3 fields away certainly increased the odds of this tail tip belonging to a big cat.The angle is right as big cats do either carry their tail in a slight curve like this or more of a S shape.Chats to fellow big cat researchers revealed that they could see the possibilities as well.As researchers we are a naturally sceptical breed but this is a necessary trait to eliminate all other possibilities in order to confer that something is evidence of a big cat.When flicking the picture to and throw with the second one some sort or black shape is there but it is of course possible that the tail tip belongs to a black feral cat but scaled with a foxes brush would appear to show that it is around 2 " thick bringing it into the big cat bracket.A big cat was due to show up around this time as it had for several seasons but sods law meant i ignored this picture until the other evidence came to light and i had already shifted the cam to somewhere else.Oh well,there is always next year.........