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.

217 comments:

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Anonymous said...

One at home enjoying the sun

Anonymous said...

Can see someone st home on camera 0ne

Anonymous said...

Someone at home camera one

Wendy Bartter said...

General round up of what I saw today, plenty of arrivals & departures but no serious bonding ...
https://youtu.be/-kA90NUxWa4

Kate said...

Thought she might knock the fallen bit off the scrape doh!! she sitting quietly on Cam 1 at the moment

Anonymous said...

One sitting camera two looking about

Anonymous said...

Back home on camera one

Wendy Bartter said...

Very brief meeting amidst all the other actions ...
https://youtu.be/rgth9WcMQng

Anonymous said...

Early bird this morning

Kate said...

One been in a while (now flown )and tuther up above

Anonymous said...

The female is back home and calling. Dunno since when…

Anonymous said...

lol of course she just left.

Wendy Bartter said...

Let you know later when I check recording!

Wendy Bartter said...

Didn't see any bonding today, did anyone else??
https://youtu.be/LOIvZ8vFlgI

Anonymous said...

No I didn't .... only one from early this morning

Wendy Bartter said...

Only saw the one visit at 14.22, awful weather, very brief glimpse of male ...
https://youtu.be/roCQWw7sWNg

Jules said...

I can confirm the weather has been awful very windy and torrential rain here

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