Swallows are currently on the RSPB's "Amber" list, so anything which might push them on to their "Red" list (like a significant decline in numbers) is going to generate interest.
And the conversion/renovation of old or dilapidated buildings might seem trivial (and it is in some respects), but it isn't going to help and nobody is suggesting that these conversions shouldn't happen. The BBC article/link just mentions the decline in numbers and Mike S just suggests a list of causes.
I don't tell my neighbours to rip up their decking or smash up their patios and create more wildlife friendly gardens, but that doesn't mean that recent garden/use of outdoor space fashions and trends are not having any effects on wildlife.
And I've already to been to "Big School" and beyond, thanks. All I've done here is attempt to answer your question, but next time I won't bother and I'll just assume that you're an ignorant & opinionated wuckfit that is mouthing off instead of someone asking a genuine question.
