Monday, 29 December 2025

One 'flu over the peregrine's nest

Update 5th January:
Wendy Bartter made this video today showing some really good bonding between the new pair:


 Original Post:

If you have read our two previous blog posts (here and here), you will be aware that our resident female peregrine falcon at the time was found dead on 12th December and that it was sent off for testing (and that a new female has arrived already to replace her).We have now been told by Defra that the dead female had indeed contracted bird flu, presumably picked up from one of its prey. 
Certainly we know that other urban peregrines have died from bird flu elsewhere in the UK (in Poole and Leicester for example).

Given the range and number of birds that peregrine falcons prey upon, this is not entirely unexpected. However, it may well be that some peregrines have built up a degree of immunity to the disease over time as have some other species. 

Although clearly this wasn't the case with our (former) female, let us hope the resident male and his new mate will not suffer the same fate. So far, so good.....


More than 50 bird species have been identified with bird flu in the UK this year and they include species which peregrine falcons take such as duck, gulls and woodcock and other wading birds.  At Derby, especially in autumn, we have found the remains of numerous woodcock over the years. These night migrants fly to the UK from Scandinavia, Poland and Russia each autumn after their breeding season. As they head inland from the east coast, we suspect they are drawn to the bright lights of our cities or follow rivers and other topographical features. 




                     A woodcock, one of thousands that fly to the UK for the winter.
                                    This one was killed by flying into a window.



Derby Cathedral tower is lit with upwards facing floodlighting, and of course Derby City itself is incredibly brightly lit at night. This makes it easy for the peregrines to spot these night migrants as they fly overhead and to fly out and grab them. 


In the winter of 2009, we managed to capture webcam footage of a live woodcock being brought back to the tower just before midnight one December evening where it was then despatched and left. It wasn't eaten until several days later but the weather at the time was very cold so it would have remained quite fresh!
The video of the live woodcock being brought back can be seen below but beware it is a little gory to watch:


 

Some readers might also be unaware that this 2009 video clip was a 'world first' - the first ever published video evidence of a peregrine falcon catching and killing live prey at night time. Read more here
 

Please scroll down to the previous blog post which updates you about the new female that has arrived.

The Project Team 
This Project is managed by Derbyshire Wildlife Trust with The Cathedral and the IT Team at Derby City Council, and the Derby Cathedral Quarter as partners.

133 comments:

Wendy Bartter said...

Thanks Nick M, good to have a definitive cause of death, just hope that it isn't going to be rife amongst our Peregrine population as, sadly, it seems to be on the rise! Certainly was a gory vid albeit an amazing capture! Looking forward to seeing the new female establish herself and lay eggs this coming season!

Anonymous said...

Thanks for the update , let's hope the others steer clear of this disease.

Anonymous said...

How many different adults have been involved in nesting, at the Cathedral, since 2006? Not including this new female.

Wendy Bartter said...

After Nattalie's sightings early this morning (see previous blog) there were three further short visits with no bonding, I feel that it was our new female ...
https://youtu.be/M5qYDqhaRbA

Helen said...

Good question! From memory I know there have been at least two, possibly three different females not including the present one. The original female appeared to be there for a long while. I think there may have been slightly more male birds over the years but I can't remember how many exactly. Maybe three or four? It's always very difficult to know for sure.

Anonymous said...

Two at home at the moment

Wendy Bartter said...

Sorry to have missed that

Anonymous said...

Briefly both, then 1 (female I think) spending time checking out the floor areas and having a good look around

Anonymous said...

And just flew away

Wendy Bartter said...

Male acting scared again & flying off quickly!

Anonymous said...

Just went but think the male (probably) is on one of the cameras now, can hear the odd noise

Wendy Bartter said...

14.51 til 14.57
Female in followed by male who was in & out in double quick time ... is he still wary of the new female?? She poked around the scrape for a bit!...
https://youtu.be/79SHGbkw-ZU

Anonymous said...

Thank you Helen 😊

Anonymous said...

Maybe he doesn't fancy her... 😞

Wendy Bartter said...

🤣🤣🤣 we'll find out in the coming weeks!

Anonymous said...

Just logged on and theres one there :)

Nattalie said...

One is home now

Anonymous said...

🤣🤣🤣

Anonymous said...

Think the female arrived and the male went

Anonymous said...

They both just arrived, lots of noise, then the male went again

Anonymous said...

I think its the female still there anyway?

Wendy Bartter said...

Certainly was the female, quite clearly can see her chest markings when preening in the footage I will post shortly

Wendy Bartter said...

09.31 til 14.05, busy day with lots of action ...
https://youtu.be/CNylnrNZpAY

Kate said...

Phew!!! just catching up, sorry missed all the actions, but good wndy Vid. Thank Nick and the TEam fro new Blog, and informing findings of cause of death of female, so sad, it is indeed very rampant so fingers crossed for our new pair.
Thanks every body and Happy New year to all naturally including our wonderful Birds.

Anonymous said...

Someone back home ! Happy New year falcon watchers

Wendy Bartter said...

Yippee, the pair were in bonding in the same scrape a few minutes ago ... footage follows after my lunch!

Anonymous said...

Happy New Year everyone. Ones back again, I'm going to say its the male..... but can't see it very well

Anonymous said...

Oh missed it. Looking forward to seeing your footage Wendy, enjoy your lunch

Wendy Bartter said...

Think it's the female

Wendy Bartter said...

Well ... a super bad start to the New Year for me ... after being so excited at seeing the pair bonding in the same scrape & reporting above about footage ... when I went to retrieve said footage I discovered that my laptop had been on all morning without actually recording ... Sorry folks, am devestated! Also our female was already perched when I logged on around 9 am & stayed for quite a while!

Wendy Bartter said...

She was calling, presumably to the male, and flew a minute ago

Wendy Bartter said...

Female flies away calling then much noise on cam from bird or birds perching, sounded like dancing in hob-nailed boots, made the picture shake then under the crenellations ... everywhere but in the scrapes again! Maybe better luck tomorrow¬ Happy New Year all
https://youtu.be/OjJIOOAt96c

Anonymous said...

Bird alert, I cant tell which one at the moment

Kate said...

Yay!! yep will be good if cam was adjusted to see whole bird at sometime, would help Ha!!!!!

Anonymous said...

It was the male, he just flew off when the female arrived

Anonymous said...

Shes gone too now :(

Wendy Bartter said...

Bonding session at 09.38 never really got started, male came & went!!
https://youtu.be/gyPSpLt7oF4

Wendy Bartter said...

A very different story at 11.38 when it looks like our male taking the initiative before exiting speedily under the ledge!!
https://youtu.be/Y2882j7jsSI

Anonymous said...

Both can be seen on Cam2. One is perched on the platform and the other is on the ledge below

vicp said...

second P Arrived on pigeon nest 02 / 01 1401 male calling from damaged ledge

Wendy Bartter said...

Thanks Anon, here we can see both in view ...
https://youtu.be/NXff_svx9Qk

Kate said...

07.36 on ledge

Kate said...

flew -7.57

Wendy Bartter said...

Female back now

Anonymous said...

Can just see the feet of someone

Anonymous said...

One back home again

Wendy Bartter said...

Activity from today, only twice did they come together but oh-so-briefly, much perching & grooming for long periods, asserting dominance over the box in the run up to breeding season ...
https://youtu.be/1qnnSB8_4sI

Kate said...

female on cam2 at 06.30 just flown as I type

Anonymous said...

Back on camera 2 listening to the bells

Anonymous said...

Now on camera 1

Anonymous said...

Caught 2 briefly, lots of noise, heads down, one flew off first (think the male) followed shortly by the other

Anonymous said...

Don't know when it arrived but looks like one is staying the night again

Nattalie said...

One here as I type

Angie T said...

Finally found way to put my name on here 🙂

Wendy Bartter said...

Well done Angie!

Wendy Bartter said...

How lovely, long bonding session and actually touching beaks, bodes well for eggs this year!🤞🤞🤞

Angie T said...

Thank you Wendy 😊

Angie T said...

If anyone hasn't seen it yet, Wild London on iplayer has peregrines in it. Lovely to see them thriving in my home town 😊

Angie T said...

Still not convinced yet, but hopefully you are right 🙂

Wendy Bartter said...

I saw this, a great programme, amazing how David Attenborough just keeps on going!

Anonymous said...

Someone’s home (didn’t expect it at this hour!).

Wendy Bartter said...

Missed that one!

Wendy Bartter said...

Good early bonding session, looking hopeful ,,,
https://youtu.be/4HsTNjreBHs?t=26

Anonymous said...

Just flew off

Wendy Bartter said...

This is a really superb bonding session at 13.10, lots of touching of beaks,
really coming together as a pair!
https://youtu.be/oWnjbWtz7ZY

Angie T said...

Certainly is. Lovely man.

Angie T said...

Thank you so much for your videos Wendy.

Wendy Bartter said...

You're very welcome Angie, are you more convinced now that they are getting on well now?

Anonymous said...

Someone is currently perched on Cam1

Kate said...

someone on ledge .Cam1 ae I type

Wendy Bartter said...

The pair have just been in but male nipped off quickly, she has been nibbling at that centre wooden divider again to add to the damage already inflicted!

Anonymous said...

Soon be time to be mended

Anonymous said...

What is happening about the collapsed floor?

Wendy Bartter said...

Very brief meet-up this morning, then female chews at the wooden divider just like the previous female used to ...
https://youtu.be/mWt0j0xqnnU

Wendy Bartter said...

Ins & outs, both under crenellations, then she has a marathon wood chewing session ...
https://youtu.be/P2GIk42FryU

Wendy Bartter said...

They carried as it got dark, the female calling to the male who was on crenellations, he was still there long after she flew ...
https://youtu.be/vlTuagINFbQ

Kate said...

one just flown cam 2...... 06.49.....

Kate said...

Back ledge Cam 1

Anonymous said...

Just flew off...
On another note, the neighbour is home (Nottingham's peregrines).

Anonymous said...

Both there having a chin wag and ones picking at the wood between them

Anonymous said...

One just left and then the other stopped picking at the wood

Nattalie said...

One in as I type

Anonymous said...

One still there camera 2

Wendy Bartter said...

Female sits & preens alone 11.55 - 12.35, good view of her speckled chest ...
https://youtu.be/CCd8hlYliuM

Wendy Bartter said...

As reported by Anon, there was a get-together of sorts but no touching beaks today, just more wood chewing with a vengeance!!!
https://youtu.be/-JB_WcIG2lY

Anonymous said...

Just noticed we have one there now, chatting.

Angie T said...

Honestly, no. My gut instinct is that he wants her to go. No pun intended, but he appears to be hen pecked, and she is pushy and has no intention of leaving. I guess there's not a lot he can do, except maybe give in.

Anonymous said...

Two here early on camera 2...having a good chat together

Nattalie said...

Yes I see both too how beautiful

Nattalie said...

Glad I saw both but ones just left

Kate said...

Hi Anonymous ( no name Ha!) Yep so pleased you seeing as well very dark obviously ..one on ledge preening while other content to be huddled down on Cam 2 will post on flickr just for ref

Anonymous said...

One back again ...preening

Anonymous said...

Just left!

Nattalie said...

One back now

Anonymous said...

Just flown away

Anonymous said...

She’s back (cam 2).

Wendy Bartter said...

Thanks all for timelines ... some of the ins & outs today plus more wood chewing ...
https://youtu.be/1peei72Z68s

Wendy Bartter said...

Too early for me, regretfully!

Nattalie said...

Cams not working for me

Wendy Bartter said...

Nor for me Nattalie, maybe something to do with this storm?? Poring rain here & same tomorrow but with gales added in! Stay safe everyone!

Nattalie said...

And back on this morning to a wintery scene but here in rainy skegness we have nothing but water lol

Nattalie said...

One back as I type making noise probably asking what all this is in our home hehe

Nattalie said...

And gone again

Kate said...

Looking at the wintry scene, thought any new comers, or even memories for us oldies,.shows oue dedicated Teams efforts to assist..... https://derbyperegrines.blogspot.com/search?q=abseil+hot+water+bottle

Wendy Bartter said...

Brings back some memories Kate

Wendy Bartter said...

Here's a link to BBC coverage ...
https://www.bbc.co.uk/news/uk-england-derbyshire-22042059

Anonymous said...

One at home on camera 1

Anonymous said...

And you can see their “paw print” on the snow. 😆

Anonymous said...

Just saw them fly off.

Anonymous said...

One still there

Wendy Bartter said...

09.42 til 15.45 ... activity in the snowy scrapes, good bonding & even more wood chewing ...
https://youtu.be/R8jXRYHMq2o

Anonymous said...

Visitor on camera two busy preening in the sunshine

Anonymous said...

And still no answer about the collapsed floor - there won't be any nesting if that isn't fixed!

Wendy Bartter said...

Male arrives first at 09.28 & waits for female ... when she flies in at 09.27 she is less than enthusiastic, he flies 2 minutes later, she stays til 10.20 ...
https://youtu.be/sGjaKh6JmaU

Wendy Bartter said...

More activity from 12.29 til 16.15, watch for pigeon pair ...
https://youtu.be/NRyDyhKUcTc

Anonymous said...

One at home pecking at snow on camera one ....chirping away

Anonymous said...

Just jumped into camera two

Wendy Bartter said...

One showing on cam #2 now, looks windy there and must be cold as snow still not melted!

Wendy Bartter said...

A very nasty moment this morning when our male got a claw caught in a hole in the metal bracing strap, just hope he didn't lose his claw trying to get free ...
https://youtu.be/mENEFVu_6tc?si=5XB7Xykzj7FD1yLe

Anonymous said...

One on camera two ...having a look about

Nattalie said...

Yes one home now

Anonymous said...

We saw one today hunched in the rain on the platform edge. So, a number of times people have commented on the floor of the platform falling off. Has anyone an idea when and how this might be fixed. I guess if the birds dont feel its suitable to nest, they might abandon it when it comes to mating and courtship time if its still in disrepair, but tricky to fix without disturbing them?

Wendy Bartter said...

Saw that bird come in but recording has turned itself off!!

Wendy Bartter said...

More activity from today, our female in destruction mode still ...
https://youtu.be/ZhEyFjMcKvU

Project Member (DWT) said...

Hi Anonymous: Don't worry. The matter is in hand and progress is being made but we'd prefer not to give further details until our plans and permissions for them are fully resolved. But rest assured, we are aware of the need to deal with matters effectively, and we believe we are doing so. We'll post on the blog when we're ready.

Angela said...

One sitting on ledge, cam 2

Kate said...

both visible one each side

Kate said...

continue bonding an cam, she even encourages him to mate Ha!! pics flickr

Anonymous said...

One at home on camera one ....watching the world go by

Anonymous said...

Still sitting on the ledge on camera one

Nattalie said...

And still here now

Wendy Bartter said...

I stopped recording around 16.39 and the female was still perched then!

Wendy Bartter said...

Only caught part of the bonding at 12.20, had sound for that but unfortunately the rest of the afternoon's footage was silent, sorry but some lovely stretches showing off her plumage ...
https://youtu.be/e8zfomrVk_8