Sorry, we've drifted way off topic here, but thanks Aidan for reminding me about that Watson & Attenborough talk (seen it before, but glad to hear it again).
Getting back on topic:
I don't have field recording equipment yet, but as soon as I do I would like to record woodland, specifically Colwick woods, just up the road from here, and the woodland near Ladybower in the Peak District, Derbyshire. I love the sparse reverberation off large trees, the sounds of wildlife and farm animals, and the sound of the wind in the leaves. Without equipment, as yet, I've only been using my ears and memory to recreate these sounds.