It’s been too windy today - the birds seem to be hiding apart from a few hardy starlings and a wood pigeon. I’ll try again tomorrow and if it’s still too windy, try Monday, the last day it can be done.
It’s the total number of a species at a given time within the hour you do your watch, ExDancer, so for example, say you saw 3 sparrows at one time within your hour, they flew off and still within that hour 4 came your garden, then you would record 4, not 7 as the number seen, otherwise it’s possible that the 3 you saw the first time were the same 3 that came back with one extra joining them, not 7 individual sparrows.