Kaz: Thankyou very much for the positive comments, all taken onboard and see where you are coming from, and I'm glad you can see an improvement in my work. Watch out for my Nuthatch thread, there is one in there I think you may like
Dougie: Thankyou too for the kind words, much appreciated indeed.
Now, I do feel the need for at least 400mm lol, my efforts are only from the 70-200mm 2.8 so I think that is next on the cards!