Archive for the ‘London’ Category

2014 Breeding Season

Thursday, September 25th, 2014
Peregrine chicks at the nest scrape
A brood of five Peregrine Falcon chicks © Tony Duckett

Inner London

At the start of the year the signs were good that the Tate pair, aka Misty and Houdini, would lay eggs for another season, their eleventh consecutive breeding season since 2004.

We are now able to confirm that although a pair reared two young, it was not Misty and Houdini. Given the probable ages of the resident pair (the falcon must have been around fourteen years old), this was bound to happen sooner or later, especially with such a healthy population. Like Misty and Houdini, the new pair has has shown a keen interest in the Tate Modern.

A little further north west, one of London’s other resident inner city pairs were observed copulating on a residential tower where Peregrines have been observed in recent years. Unfortunately despite promising initial signs, both adults were observed together when other pairs were still on eggs – a sure sign that incubation had ended prematurely, most likely due to lack of substrate (nesting material) or disturbance.

Elsewhere, the Parliament pair raised three young after last year’s failed attempt. The building they use is likely to be demolished before next season. Hopefully the pair will find another site in or around Westminster.

The post-fledging period was quite eventful. One of the Tate pair’s young was found dead after colliding with a tall building, an unfortunate but not uncommon cause of mortality in urban Peregrines. Two juvenile Peregrines from different sites were brought to a wildlife sanctuary in Sutton. We were able to return one of these back to its natal site. Another juvenile Peregrine was brought in after being picked up in central London. This bird showed signs of being held in captivity and received a medical assessment by a specialist vet at the Royal Veterinary College. After a few days recuperation in an aviary it was transferred to the Hawk Conservancy Trust in Andover, to be hacked back into the wild by experienced falconers.

Greater London

In an earlier update we mentioned a site which had been flooded during the off-season. We’re pleased to report that this pair made use of a tray which had previously been installed for them on an adjacent building. This pair reared five young, the first brood of five for London since Sutton in 2012.

After last year’s mysterious absence, followers of Sutton’s resident Peregrine pair were over the moon when the falcon (possibly a new bird) was observed laying eggs at their old site. Four young were reared and fledged at Quadrant House.

Juvenile Peregrine Falcon clinging to a wall
One of the juvs from Sutton having a difficult time of it © Phil Wallace

While the population in Inner London has remained relatively stable, other areas in Greater London have seen an increase in Peregrine activity. New pairs were confirmed at two sites which failed. One of these was found to have failed due to a lack of substrate. A tray has been installed and there are good odds of a successful attempt next season.

The Future

There is an abundance of food for opportunistic Peregrines in London. Accidental disturbance and lack of substrate are two big factors limiting breeding success. We are happy to advise individuals or groups who wish to assist their local Peregrine pair(s). The success of the Sutton pair is a good example of how such a partnership can benefit wildlife and the local community.

What’s going on?

Sunday, March 9th, 2014

Starting with some good news, David Johnson has had his Schedule 1 License renewed for the 2014 breeding season, with Stuart Harrington and Tony Duckett being his accredited agents.

Breeding season 2013

Adult feeding young at the nest © Tony Duckett

2013 was another successful year for Peregrine Falcons in the London area. Ten birds fledged from sites that we were directly involved with, although the full figure for London was of course higher. Notable failures included the Parliament pair, which decided to ignore their usual scrape and the pair in Sutton, which briefly reloacted to an unknown site during the early stages of the breeding season and returned without young.

One of the big surprises of the season was the successful breeding attempt by a pair whose site had been disturbed in 2012. This pair found itself an alternative site in an unexpected location, fledging 3 young (see ’site 1′ below for an update for 2014).

Recently fledged juveniles © Tony Duckett

Updates for 2014

All accessible sites have been visited and old dirty nesting material (substrate) has been replaced with new clean shingle. Unfortunately at least one site has been hit by this winter’s wet weather.

Site 1 has been flooded. Scaffolding had to be put up (during the non-breeding season when the site is not under license) to allow the leak to be fixed. The resident pair have moved to another building close by, where thankfully a nesting tray was installed in 2012. The birds have been seen perched very close to the tray which is a good sign. As usual all the relevant people have been informed of the birds presence and have agreed to stay off the roof until after the breeding season.

Elsewhere, other factors have come into play which have resulted in the loss of potential nest sites. Site 2, for example, was successful last year, fledging two female chicks. During the non-breeding season the owners of the site took steps to deter the birds from returning. This is unfortunate, but ultimately something that we have to accept (more on this in a future blog post).

Other recent news includes the sighting of a pair seen displaying over a currently unoccupied (but previously successful) site in central London. This site still has a purpose-built box in place should a new pair decide to take up residence.

Meanwhile in Sutton, the resident pair have been seen tending to their old scrape, which they last used in 2012. The pair’s absence last year remains unexplained, however we are all hopeful that the birds remain on site where local volunteers can be on hand to help the fledglings should they get into difficulty.

As the days lengthen our resident pairs will make themselves seen and heard as they busy themselves mating and acting out courtship rituals in preparation for egg laying.1 Let us know if you notice Peregrine Falcon activity around tall buildings in your area.

Keep looking up, you may see a Peregrine or hear one.

1As this post was being prepared, we heard via Nathalie Mahieu that an egg was laid on Saturday evening at the Charing Cross Hospital site in south west London.

A fall from grace

Monday, April 22nd, 2013

One morning last week we received a call from the operations manager of a building in London informing us that a Peregrine Falcon had become trapped on their rooftop. Fortunately we still had gloves and a box on standby from last season, so after a few phone calls and a short tube journey later we had someone on site to help rescue the bird.

Preparing the nesting tray
In a tight spot

The Peregrine, an adult male, had blood on its right shoulder and on one side of its head. Birds of prey need to be in top condition to survive in the wild, so we decided it would need to be checked by a vet before being released. The RSPCA were informed of the situation and we liaised with them to find a local vet. In the meantime the bird was transported to Regent’s Park, where it remained in the care of our experienced Schedule 1 license holder, wildlife officer Dave Johnson.

Close-up of the nesting tray
The Peregrine prior to being caught for release © Tony Duckett

The RSPCA found a vet and the bird was taken in for a thorough assessment. It was deemed fit for release and returned to Dave Johnson, who took it to a suitable location before releasing it.

We sincerely thank Madeleine, for reporting the bird to us and her assistance in its rescue, and the Royal Veterinary College, London.

Time flies

Friday, December 28th, 2012

Better late than never, here’s a recap of the 2012 season and a brief look ahead to 2013.

2012 was the worst breeding season on record for many nesting birds in the UK. Peregrines may not have been affected as badly as more insectivorous species, but some nest sites that would probably have produced young failed because of the poor weather. Sites on man-made structures without sufficient shelter or drainage were worst affected. One such case was documented in harrowing detail on the webcam showing the Peregrines nesting on the roof of Nottingham Trent University’s Newton Building (BBC News – Webcam turned off as peregrine falcon chicks die in Nottingham).

A handful of sites in London failed due to the weather.1 A few other sites failed due to the unsuitability of the structure (in some cases simply a lack of substrate), and a couple due to human disturbance. The season was not without successes though. A reasonable number of sites fledged young, with a number of pairs fledging three or more juveniles (including the Fulham and Barnes and Parliament pairs) and what we believe to be the first brood of five young in the London area (Sutton Peregrines).

The family at Charing Cross Hospital were the internet stars of the year, having their life on the nest ledge captured by HD webcams installed by Simon King and closely monitored by Nathalie Mahieu. Sutton’s ‘famous five’ were all the more remarkable given that they make their scrape in shingle on the roof on an office block without a roof over their heads. These were among the last pairs to fledge young, which meant the chicks had hatched after the worst of the season’s heavy rainfall. Special mention must be given to the band of volunteers at Sutton, their organizer Rob Dolton, and the building managers at Quadrant House, who between them performed several successful rescue attempts and without whom at least one or two of those birds would have been lost.

The Tate Modern pair continued their record of consecutive successful breeding attempts, fledging a single juvenile male. High winds were an issue during fledging at this and other sites, with chicks finding themselves swept off the nest ledge a day or two early. The adults demonstrated their command of flight navigating strong winds to bring food down to the juvenile tiercel when he struggled to find a good perch on his first blustery days on the wing. While monitoring this nest site we found a Nightjar which had been blown off a ledge the resident birds use to cache their food–the first instance of this species on record for an urban Peregrine site2 and a most surprising discovery in the centre of a big city.

As Dave Morrison has already pointed out on his Parliament Diary, several of the birds that fledged this season were fitted with colour rings. If you should see an immature or adult Peregrine sporting an orange colour ring in or near London please contact us. We’re also keen to hear about any Peregrine activity you observe on buildings in London from January/February onwards. While we may not be able to install nest boxes at every site that attracts Peregrines, it is important to monitor Peregrine activity especially nesting attempts.

We’re hopeful for another successful breeding season in 2013, ideally with a bit less rain and good fledging conditions. Will the Sutton birds repeat their brood of five? Will the Tate birds succeed another year? Watch this space.

1. Data collected by Dave Morrison.
2. Communication with Ed Drewitt.

Season recap

Sunday, July 17th, 2011
The tiercel at Sutton with a freshly caught Swift © Phil Wallace

The breeding season is winding down. This year’s fledglings are now on the wing, learning the essential skills they’ll need to survive to independence. We have yet to collate the results for the greater London area, but we’re pleased to report on a successful season for some of our better known pairs.

The Tate pair fledged two young. From this weekend you have the opportunity to see the birds through telescopes at the RSPB viewing point.

The Parliament peregrines (as seen on the RSPB/BT webcam and Springwatch) bred again, fledging three young. The family can now be seen around Houses of Parliament in Westminster.

A pair in Fulham and Barnes fledged three young—the first successful attempt at the site—though not without a bit of drama. You can read a full account of events on the Fulham and Barnes Peregrines Facebook page set up by Nathalie Mahieu.

In Sutton a pair bred again on an office block by the train station, fledging four young. This site was monitored by local volunteers organized by Rob Dolton and advised by the LPP. Sutton Peregrines are also on Facebook.

Thanks to everyone who gave up their time to help the birds this year.

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