If they've not been displaced from a crop being harvested, maybe there's been a recent hatching of something and your windows are strangely attractive to them ...
Is it possible for a photo of some of them ... clear enough for @wild edges or someone to attempt an ID?
Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.
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Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.
If they've not been displaced from a crop being harvested, maybe there's been a recent hatching of something and your windows are strangely attractive to them ...
Is it possible for a photo of some of them ... clear enough for @wild edges or someone to attempt an ID?
Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.
Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.
"Have nothing in your garden that you don't know to be useful, or believe to be beautiful."
Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.