Does anyone have evidence of an artificial swallow porch being successful, like this design from Acer Ecology?
If you have had success, what was your design?
I'd like to encourage swallows to nest again but the Jackdaws have put them off nesting inside our barn.
Hard to imagine that's a viable design for swallows.
Is there any way of keeping jackdaws out the barn? Is it an open fronted one?