Yes. "Drawing Birds" by John Busby is excellent, and I would thoroughly recommend it. It is a current title so is easily available from bookstores - I got mine in Waterstones a few weeks ago. The relevant info is this:
144 pages (July 2004)
and it is priced £19.99 although amazon.co.uk have it cheaper.
For some inspiration I would also get Mike Warren's superb little book "Field Sketches" available from his website www.mikewarren.co.uk/index.html
It isn't a "How to" guide, just a reproduction of his field sketches.