I think Richard Lewthwaite is the resident recording expert and there is already a link to bird recordings on the public HKBWS website. The problem for me is the amount of gear I already carry. If you try to be a birder and photographer then you end up like some sort of beast of burden. I wanted something genuinely small and light that I could add to my kit without it making things too worse. I am already contemplating selling my 500mm f4 IS as I find the 300mm f2.8 serves me well and is so much easier on my back. :wink:
One thing the Remembird can't do is create sonograms but I'm sure they can be transferred into that format somehow.