Wow CLKD - we only get ours (greater spotted woodpecker) on the feeders during the breeding season - although I can hear it calling (and drumming) in the trees in the vicinity.
Taz - that's amazing thanks - yes it has been incredibly mild this year - typical - the year I've got four different types of feeders instead of two (not that I'm wishing a hard winter on anyone - but I've only worn gloves twice!)! I thought those woods were near us (because of the name) but see they're probably the Dartmoor ones of the same name.... yes ours race about too - I can hear them "seep"ing from the window of the upstairs bedroom I work from which overlooks the front garden and feeders.
Hey girls - don't let a phone call from RSPB put you off registering for the survey! Sorry to hear you were put off honeybun but they are a very worthwhile charity - bought my husband membership for his birthday - which he asked for (Xmas Eve...). All you need to do is click unsubscribe if you don't want to get any e-mails....
Taz - you could have done another hour and then included it!

This particular survey is aiming to give an estimate of population sizes ie abundance rather than diversity - so the fact that the woodpecker didn't visit your garden during that hour you chose probably did give a true picture if you see what I mean. I think so many people take part that the results although crude do demonstrate general trends (though I haven't been following it!) - if people are honest!! However I think the species diversity like you are saying - all the species of birds that visit would also be good, and would be great if RSPB did this too - mind you I can't imagine being glued to the window all weekend just to record every species but one could do it over say a week or something and just record species? Unless it turns cold I am thinking I might see and record nothing!! Husband is going to tempt them (fieldfares etc) into the orchard grass by putting out all the apples hidden in the long grass that haven't rotted yet!
Hurdity x