I watched one morning as over a dozen blue tits emerged from one of our nest boxes. They also go looking for spiders etc. in them.
In an ideal world I would leave the tops on perennials over Winter, but as it takes from now until Spring to clear them all off that is not a choice.
By the way what do you folks do with the removed top growth? A lot of the stuff we have will not rot and believe me I have tried. It is very difficult to shred, except when very dry and ditto for burning. Be nice to be able to put it in the Council compost bin, but I filled both of ours witrh the Clematis I cut down. Only another 60 or so of those to do too.
wow that must be a nice large garden with over sixty clematis, I bet it looks stunning when in bloom, I planted my first three this year and really enjoyed them, hoping to plant some more next year. I started to tidy up last weekend, The garden looks a little bare now but much tidier, I am just waiting for the last of the tree leaves to drop now so I can complete the task, I noticed a big change in their rate of fall this week with a lot of them almost bare now, some beautiful autumn colours this year.