Skilful -
I had already written the word skilful and meant it - when I looked again at the very last line. And I noticed that it jarred - don't know why. Is it 'must' (at least over here snow is not the norm in winter any longer) or the simply that the verb is pushed to the end of the line? I do not know. But I know this: There is this memory of bright autumn leaves, the sight of the squirrel and other little creatures, then the background of browns, different hues in fading light, the light sounds of small animals moving and one of us, too, watching before winter is coming. And man - you - there combining random impressions to a picture that makes sense - your environment, your views of nature (so typically human), your trying to spot what you expect - and finally - something remote from your personal experience, something different and I sense some loss there - as if you yourself were gone from that part.
I have looked again at the last lines: It is the creatures that must roam and prepare, not us. Winter is coming anyway, for them. we are warm and safe. I keep adding my own thoughts. You are simply too evocative in your poems.
I love how the rhyme weaves its way through the stanzas.