Badger watching

Testing times for Nikon and Sigma
Have booked to go Badger watching at Caerlaverock Wetland Trust site in Dumfries and Galloway. Really excited about this as I have never seen a Badger in the wild before apart from dead ones at the side of the road. I am really looking forward to seeing these creatures and also to see if I can capture them on my camera. This should be a really good demanding test of the Nikon D7000 and will try both the Nikon 18- 200and Sigma 150-500 f5-6.3 and see how they perform.One thing I am certain of is that the light will be really poor if there is any at all !!