Site visit with Southwark Council

On Friday 17th July we met with Southwark Council’s Ecology Officer Jon Best to discuss the management of One Tree Hill. There were a wealth of butterflies, bees and dragonflies active on the day so it was the perfect time to visit.

The management plan for One Tree Hill needs updating to ensure that the aims are achievable and that the habitats can be properly managed for the benefit of wildlife. Bramble is an important resource for invertebrates and for blackberries but it is expanding into some of areas of grassland where it needs to be kept back. We also discussed the possibility of a pond to support dragonflies and amphibians.

Events 2015

Events on One Tree Hill 2015

 Annual Meeting April 8th St. Augustine’s Church

7.30pm AGM – members only

8.00pm The First Blitz and the Gun Platform on One Tree Hill – an illustrated talk by David Marks

Contact Sandy Pepperell at for more details

For all of the following meet at the notice board inside the entrance at the top of Honor Oak Park

  • Dawn Chorus Walk – 2nd May 5:00 am
  • Dusk Chorus Walk – 21st May 7:30 pm
  • Bat Walk Wed 10th June – 9.00pm
  • Great North Wood walk – Sat 15th August 12 noon

Contact Doug Brooks for the Dawn and Dusk chorus walks

Contact Dan Greenwood for the Bat and GNW walks

Additional Event Sunday July 27th 2014

Sunday 27th July 1-3pm

The Big Butterfly Count on OTH

The annual Butterfly Conservation Big Butterfly Count is upon us and the Friends will be conducting a survey on a walk around One Tree Hill.

Please join us. We will be handing out survey forms and id charts for you to complete your own survey at home.
Previously we have recorded Speckled Wood, Essex Skipper, Comma, Red Admiral, Meadow Brown, Holly Blue and lots of Gatekeepers!
Meet at the FrOTH Notice Board by the gates leading to St. Augustine’s Church.

For more information on this national event go to


Speckled wood

Speckled wood

February workday – prunus, please!


Blackthorn pruning, the Oak of Honor looking resplendent in the top right

This month we met on Saturday 1st February to continue pruning the blackthorn (Prunus spinosa, please) along the top of the hill. Left unmanaged, blackthorn will spread through the grasslands and all the way up to the pathway, taking over the grasslands and growing into small trees. We cut the shrubs down to about head height and filled the gaps with the brash to thicken it up a bit. This can look quite untidy to people, but as a Local Nature Reserve, we are doing our bit to support the site’s diverse wildlife by keeping the hedges in a denser, more shrub-like state.


The blackthorn hedge mid-cut

It looks a little like warfare – and it felt like it, blackthorn is brutal! – but the hedge will come back stronger in the spring and summer. And look at the state of the hedge back in September shows just how big it had become:


Well done to the Friends of One Tree Hill volunteers for a sustained effort over the autumn and winter, we look forward to seeing it sprout anew in the coming months. Our next workday will be in March.


Winter tree ID – Saturday 18th January 2014, 12noon

Join us on Saturday 18th January 2014 at 12noon for a guide to the trees of One Tree Hill. Daniel Greenwood will be leading the walk and pointing out how to identify trees when not in leaf by looking at bark, buds, tree shape and habitat.

Please meet on the Honor Oak Park drive, email for more information.

This is a free walk, all welcome, dogs on leads during the walk please.


Bird box check, December 2013

On Saturday 7th December 2013 we conducted our annual bird box check and clean out (a little earlier this winter). We discovered that most of the boxes had been used, mostly by great tit and blue tit but possibly also the nuthatch, a bird which likes to line the hole of some bird boxes with a mud lining to reduce the size of the hole and deter larger predators from gaining entry.


Above you can see the variety of materials that tits use to create their nests. Mosses, dog hair, wool, grasses and even the bright yellow tennis ball ‘hair’ is used. The nests are often well stocked with fleas, and one nest in particular was positively thriving with them.


Chris brings his ladder every year to help with the job. Helmets are a priority for anyone under the ladder as the lids of the boxes can cause serious injury if they hit you on the head.


One of the boxes was attached to a large poplar that came down in October’s storm. We managed to find it, underneath the tree. Obviously we joked that it was the weight of the box that proved the final straw for the tree. It would also appear that one of our owl boxes has disappeared. Tawny owls are yet to breed at One Tree Hill whilst we have been surveying but residents nearby regularly hear them calling, and the birds are known to breed in Nunhead Cemetery, at Sydenham Hill Wood and in the wooded parkland and open greens around Dulwich.

On Saturday we spotted a sparrowhawk flying low through the woodland, with a flock of long-tailed tits trilling in harmony to warn of its approach. A flock of parakeets then arrived to disturb the hungry hawk.


Fungi walk recap

Thanks to local fungi expert David Warwick for leading the Friends of One Tree Hill’s fungi walk on Saturday. We discovered hare’s ears, knights, milkcaps, deceivers, waxcaps, bonnets and brackets and observed how the return of the site to woodland after a brief hiatus for the Oak of Arnon Wood showed that grassland species were retreating as the woodland regained its hold on the landscape. We also spotted two red admiral butterflies basking in the hilltop sunshine. Thank you also to everyone who attended and made it a very interesting and enjoyable community event.



David identifies some fungi growing atop the hill

Oak of Honor

The Oak of Honor looking rather verdant so late in the year

David Warwick

David discusses the issue of ash dieback, a fungi to be feared

Fungi walk, Saturday 16th November

Parasol mushroom

Parasol mushroom at One Tree Hill by D. Greenwood

On Saturday 16th November local fungi expert David Warwick will be leading a walk on One Tree Hill.

Meet at the noticeboard on the drive to St. Augustine’s Church at 12noon, reach along Honor Oak Park, up the steps if entering near the allotments after arriving at Honor Oak Park station. Please wear appropriate footwear and outdoor clothing. This is a free walk and booking is not required.

Please note that this is not a foraging event. One Tree Hill is a Local Nature Reserve where all plants, animals and fungi are protected by law. Urban nature reserves can be greatly disturbed by foraging due to their unique ecological character and isolation.