FW: ‘Swifts spark joy!’ Why these beautiful birds need our help – and 10 ways to give it | Environment | The Guardian

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Mike Priaulx

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Apr 2, 2026, 4:11:40 PM (3 days ago) Apr 2
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This article is brilliant in many ways, especially the contributions from SLN members such as Edward and Hannah:
I don't like the first bit about insects (the later gardening section is great but just taken out of context by the editor I think), I've written something separate about the first insect bit.

All the best,
Mike

Islington and Hackney Swifts Groups

Mike Priaulx

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Apr 2, 2026, 4:12:59 PM (3 days ago) Apr 2
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Mike Priaulx

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Apr 2, 2026, 4:24:34 PM (3 days ago) Apr 2
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I was surprised insects are described as "the elephant in the room" when their impact has been discussed and researched throughout the few years I've been involved and I'm sure much longer.

(Article link for reference:

Personally in a couple of articles I've been asked to write recently I've stuck with what we know for sure which is that:


Nest site availability makes a very significant difference on a local basis. Swifts are rarely seen in urban areas which have no nest sites (as you'll see from Swift Mapper if you look at modern estates and new towns), no matter how green they are.


When existing colonies are lost due to nest site loss there's a noticeable decline in local numbers observed, often to zero.


New buildings and estates definitely won't host building-dependent species if they are not built with swift boxes/ bricks (unless residents retrofit measures, which is very inefficient compared to building them in).


Swift bricks are designed for a 60 year plus lifetime (60 years is the design lifetime of a modern house), after which the insect population could be drastically different, either better or worse, depending on whether you're an optimist or pessimist, or think the human race will have wiped itself out by then :-)


Swifts can fly a hundred miles a day for insects, so local variations of food supply are less important.


Swift bricks work in practice now, we don't need to know how they're doing it!


All the best,

Mike


Islington and Hackney Swifts Groups


Flora Blackwater

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Apr 3, 2026, 6:14:15 AM (3 days ago) Apr 3
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💯 agree Mike

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Tim Norriss

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Apr 3, 2026, 2:53:37 PM (2 days ago) Apr 3
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Hi Mike and all

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Tim Norriss

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Apr 3, 2026, 2:57:09 PM (2 days ago) Apr 3
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Hi Mike and all

 

My view is that Anderson does the RSPB no favours at all with his comments. Saying ‘it’s likely that the loss of nesting sites is part of the picture’ is simply staggering. But of course that is the scientists’ response – read only what has been written by scientists and ignore everything else. I understand that – but don’t then continue to quote irrelevant stuff. It just shows how entrenched they and the BTO are that loss of insects are a major part of the problem. Despite them trying to prove it for many years they have come up with no credible evidence whatsoever. And the ‘six-legged elephant in the room’ comment is disgraceful whilst at the same time saying that recent research on swifts suggests “periods of the worst bad weather do affect their breeding success”. Wow, what a revelation, who would ever have guessed that!

And he quotes the research finding that a number of migratory bird species were leaving the UK underweight for their marathon journeys. The article doesn’t mention that the Common Swift is not one of the 33 species studied in that paper and therefore has no relevance whatever.

The inference from all these comments just continues the myth that the loss of insects must be a cause of the ongoing national decline. It isn’t. None of us like to be told we are wrong and its clear to me that scientists are largely doing the wrong research; although to be fair some of it is good and useful.  But they seem completely ignorant of the great success stories by groups around the country which, by installing many boxes have hugely increased the Swift populations in their areas. This could not have happened if loss of insects was the problem. But they completely ignore that because it wasn’t done by scientists.

So here in Hampshire the cause of the decline has been loss of nesting sites and we have proved that in Winchester by linking the decline in natural sites (close to the national average) whilst still increasing the population overall by 43% in 7 years by installing hundreds of boxes. And don’t tell me that ‘Hampshire is different’ as the BTO have done, because it isn’t. This can be done anywhere (and has been in many places). So what do I think is the historical effect of ‘loss of insects’ on the Swift population? Precisely zero. As a human race we are very slow to change our minds on things that we have been told or taught as true. One only has to consider religion and politics to quote just two.

 

Tim Norriss

Hampshire Swifts

 

 

From: 'Mike Priaulx' via swiftslocalnetwork <swiftsloc...@googlegroups.com>
Sent: 02 April 2026 21:24
To: Digest recipients <swiftsloc...@googlegroups.com>
Subject: [SLN] Insects in Guardian article

 

I was surprised insects are described as "the elephant in the room" when their impact has been discussed and researched throughout the few years I've been involved and I'm sure much longer.

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Tanya Hoare

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Apr 3, 2026, 3:12:43 PM (2 days ago) Apr 3
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Mike - Your own summary of the topic is excellent and to the point.

b/w

Tim Norriss

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6:56 AM (12 hours ago) 6:56 AM
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Thanks Tanya, I agree and Mike’s comments are great as far as they go but I think we all actually know more than that but are afraid of getting ahead of the scientists. Scientists have had 35 years to work out the problem and still have not done so. And I think in another 35 years they still won’t have. As time goes on and as more of the estates that were built from around 1950 – 1990 have their timber fascias and soffits replaced with upvc it becomes more difficult to prove the losses. Only in the last couple of years are they starting to accept that loss of nesting sites ‘may be a part’ of the problem.

 

I think deep down we all know (nearly all of us anyway) that the historical decline is nothing to do with loss of insects and we should be speaking out more against those scientists who whilst hiding behind their background still push their own insidious and incorrect agendas.

 

I will be writing to the Guardian and to Guy Anderson and I urge all to do so.

 

Cheers

Tim

Graham Knight

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11:30 AM (8 hours ago) 11:30 AM
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Hi Tim 

I was just reading about some nest holes being mortared up by Network Rail at a viaduct in Chapel Milton in Derbyshire, and thinking just how much I agree with you.

This study of insect numbers has previously been mentioned on the SLN but is worth highlighting again:


The study looked at weather radar data from 2014 to 2021 and found that "while daytime species held steady, nocturnal arthropods - many of them vital pollinators or prey for bats and birds - showed an overall decline during the study period"

Perhaps I am being simplistic here but surely Swifts are feeding on day flying insects which were not declining for the seven years of the study period?

The issue is how we persuade others that nest sites, not insects, is the issue.

For me the answer has to be by the collection of data and evidence. This means intensive survey work in more parts of the country, combined with monitoring of Swift box occupation to prove effectiveness. 

On top of this, the data then needs to be shared and collated on a regional or national scale, something that could definitely be improved in Swift conservation at the moment 

Best wishes

Graham Knight
Sawbridgeworth Swifts
Facebook - Sawbridgeworth Swifts


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