I haven't posted a longer update here in a while of my '6000 species in 2026' pan-species year-listing challenge, as I have been doing more daily updates on Instagram/Facebook. I thought an end of June update would be a good thing, the 'half way' stage in the challenge (actually not quite, as there are 184 days between 1st July and 31st December). Anyways, I ended 30th June on 3,840 species for the year (64.0% of the challenge complete). I am about 850 species ahead of where I would be if I were to add 16.4 species a day, every day (exactly the number I would need to reach 6,000 on the nose). Of course, that's already out of date (I am on 3,862 species - 64.4%). On the 30th June I was working at Heyshott Down, doing a plant survey, where I added Marsh Fragrant-orchid and Musk Orchid to the year list (along with Goshawk).
This is a really fun challenge but I certainly won't be doing it every year. Almost everything I am adding at the moment is from work and moth trapping. I am not looking at any specimens until after September. I had planned to go to Scotland in the last week of June but various things conspired against me, but I did have a few days out instead. A day trip to the Cambridgeshire fens with Peter Sutton was great fun. I finally got to see Reed Leopard!
And this aptly named Lister's River Snail! What an absolutely beautiful aquatic snail this is.
Wait, the top of that snail looks familiar? Oh yeah, it's the poop emoji!
And of course, the star of the show - the rather rare Agabus undulatus!
I have seen lots of new stuff already this year, 235 species to be precise! That's 1.30 species per day. I am only 53 species away from the mythical 10,000 species for my PSL life list, something that will likely now happen in late August. Everything in the following collage I have seen new in the first half of 2026.
One of the interesting things about this challenge is how how it has changed my behaviour. Now, we had an epic trip to Cornwall rock-pooling at the end of March/start of April. This was so good, that it has sort of ruined rock-pooling for me in Sussex. You have to work really hard here to find new things, as such I have only been out once since. Meanwhile, two or my largest target taxa are vascular plants (with a 1,050 species target) and moths (with a 850 target). Now beetles are my highest target (I have set myself a ludicrous 1,200 species) and although a lot of these are field identifiable, a huge number are also sitting in alcohol waiting to be identified over the winter. Not so with moths and vascular plants. They're both great groups to add yo your list as the year progresses. As such, I have really got back into these groups, especially moth trapping, dusking and going out at night. I have even really been enjoying gen detting moths. It's also a really great way to do recording when you are already busy! As well as a great way to cool off during a heatwave - go nocturnal! Nothing has been more exciting though than netting an Eastern Bordered Straw at Hurston Warren at the start of that invasion (before my feed was saturated with other people's pictures of them), what a moth!
After 137 days I matched my first incarnation of my pan-species list. That was 2,748 species that once took me 32 years to accumulate. In other words, it took me 137 days to match what once took me 11,795 days! I can't think of any better way to show the power of the pan-species listing approach than this! I should add I have never once used AI to identify anything and never will, you can read more about that in my book!
Anyways, here's where I am at with each taxa. I have reached my targets for protists, other animals, annelids, sea-spiders, crustaceans, springtails, 3-taled bristletails, fish, amphibians, cnidarians and bryophytes. I am getting very close on mammals, molluscs and butterflies.
This chart is interesting, you can see the rapid growth of the list in January that then flattens out in Feb and Mar where I became increasingly desk bound. Then the field season started at the start of April, from this point on I am adding species at a very consistent rate, around 24 species a day!
So I thought I would pull out the ten most speciose taxa and chart them in the same way (the other 28 taxa are displayed as 'others' here in dark blue - the fourth line down). Vascular plants (mid blue) are in the lead for now, but could well be over taken by beetles and/or moths. Beetles (orange) show a vert similar pattern to the vascular plants. Moths have REALLY ramped up in the last six weeks, storming past bugs, spiders and more. Moth trapping can add dozens of species a day (of course, the by-catch is significant too) but my garden actinic is typically one or two new species a night (so I have taken to trapping with my MV at my old place of work, Southerham). The two steep pulses below (the grey line) represent the madness of the two heat waves. Spiders (yellow) started hard but plateaued. This is because most spiders I couldn't field ID are waiting for me to look at over the winter. Bugs (in light blue) are likely to overtake spiders at some point. Flies, birds, hymenopterans, molluscs and bryophytes all cluster together, but with flies just nudging into 6th place (in green).
Will I make it? Sure, I think so. Burn out is something I just don't get, I love it all too much! I would love to get to 6,000 by the end of the year, with specimens further adding to the total as I process them from Jan to Mar next year. Fungi season in the autumn will surely add a few hundred species too. I still haven't seen a Dunlin, Grey Plover, Goldeneye, Goosander or Pink-footed Goose! An autumn trip to Norfolk is on the cards for sure.
If you want to get into pan-species listing, you can sign up to our website for free here www.panspecieslisting.com. And it's well worth getting my book, which has already gone to reprint! https://pelagicpublishing.com/products/pan-species-listing.And please do consider sponsoring me for this challenge, I am raising funds to help Sussex Wildlife Trust manage their land. My Just Giving page is here.
I'll be at Global Birdfair the weekend after next, so come and find me. Will do another post on that in the next few days.
This story starts some 16 years ago, in the early days of my blog. Here was my first attempt to look for Sloe Carpet. As you can see, I failed but last night thanks to Dave Green, I did not. I headed out into the wild West Weald of West Sussex for some dusking and we were soon 'sloe dancing' around country roads by torch light with our nets like a couple of burks. I realise I have not done an update on the 6000 Species in 20226 challenge for ages. So as of last night I am now on 1,549 species for the year, that's 25.8%. I have really 'sloed' down in March (and late Feb) to focus on desk work and a kitchen renovation, but come early April this is all going to change.
The first moth we caught was this Scorched Carpet. Gorgeous and NFY (I didn't want to put the 6000 species in 2026 logo on the photo of the Sloe Carpet {sorry Scorched Carpet}).
There was a lot on the wing. A Chestnut, dozens of Shoulder Stripes and a Brindled Pug. Then I caught my first Streamer of the night. What a moth this is, another year tick and very abundant. Also, annoyingly similar to a Sloe Carpet in flight, so I had to catch them all to check.
Then a noctuid landed in the grass in front of me, it was only a Blossom Underwing! Another year tick.
A Hebrew Character and a Satellite were netted but the Sloe Carpet was remaining hard to get. Dave suggested walking down a different lane. The mad rush of moths dropped off and we hadn't seen a moth for about 15 mins. The temperature dropped rather a lot too, when I spotted another Streamer. I netted it, only to find it was a box fresh Sloe Carpet!!! A lifer. It was listed as Nationally Scarce in the 2019 review and is genuinely uncommon. Look at the three white buttons along the back of the thorax. This is my 1,322 moth in the British Isles, putting me in 11th place for moths on the PSL rankings.
One final look in the trap unblocked Clouded Drab (never been so excited to see this), Marbled Brown and Frosted Green. I love going out at night doing natural history with a torch, especially at this time of year. And netting moths on the wing is such a work out. All that happened in just 1.5 hours, I was home by 9.00 pm.
Here's a breakdown of my progress so far on the challenge...
My targets are reached for; protists, springtails, bristletails and bryophytes.
Many thank to everyone who has sponsored me so far, please do consider sponsoring me if you can, I am fund raising for Sussex Wildlife Trust's reserves here. You can sign up to the pan-species listing website here, it's totally free (although donations to the team are welcome).
And finally, you can order my book all about pan-species listing here, directly from Pelagic.
As of today I am on 1,255 species (20.9%) in the first six weeks of the year (665 of which are inverts). The latest addition being a tiny Pseudeuophrys lanigera that was actually sitting on the edge of the key hole on my front door when I got back from training! Yesterday, we had a look around Swanbourne Lake, part of the Norfolk Estate. I was mainly looking inside old tussocks of Greater Tussock-sedge. They were insanely productive, the highlight being this adult female Donacochara speciosa which was new to West Sussex!
Before that though, I pulled over by a flooded field along the Arun just south of Arundel WWT. There were hundreds of Black-headed Gulls and I was hoping to get Med Gull, which I soon did. I wasn't then expecting to get 80 Cattle Egrets!!! Followed by Gadwall and finally...Greylag (?). That's Little, Great White and Cattle Egrets before I got Greylag Goose. I am out of touch with looking for birds though, here I am trying to get on to some distant swans. My top target on the PSL website for the year is now Pochard.
Other spiders NFY included Rugathodes instabilis, Panamomops sulcifrons, Antistea elegans, Hahnia nava and Gongylidiellum vivum. That's 190 arachnids and 176 spiders for the year. I just love these tussocks. Water-measuers, Drinkers, Glow-worms - they contain multitudes!
I found a couple of these odd looking dung beetles in the tussocks, it's the non-native saproxylic species called Saprosites mendax. I though this was a lifer but remembered catching one by hand in the park by my house a couple of years ago. Turns out Arundel Park is well known for it. Saw-sedge was a surprise too, apparently it has been introduced there for over 150 years.
I did get a couple of lifers in the tussocks though. The NR carabid Badister peltatus and the centipede Strigamia crassipes. I think this is the first time I have seen Rosy Woodlouse in a tussock.
I swear these tussocks move when you're not looking. I always imagine Jim Henson lives on in them.
I beat some Box and immediately got a rather nice moth tick, which I was really not expecting. The big micro Ypsolopha mucronella. But even better than that, Anthocoris butleri new for me and all of Sussex. This species only feeds on Box and as I rarely see it in any abundance, I have never seen the bug before. Four invert lifers, one species new to Sussex and another new to West Sussex was not what I was expecting! It pays to go to sites you don't normally visit. I think I only ever visited here once 12 years ago but remembered the Box and tussocks.
In other news. the garden actinic has been super quiet since a Dark Chestnut in January but earlier this week I had a Southern Green Shieldbug.
And I went bryologising again with the local group in what was at first awful weather (I greeted Brad with "I've gone bryologising by mistake"). It turned out to be a top day, and I got a few lifers. Ben also spotted one of my favourite mosses on the side of a ghyll. Hookeria lucens. I couldn't get any closer with my camera though. Wild Garlic, Opposite-leaved Golden-sax and a Dolichovespula media queen were also NFY.
And that's my first target reached! I was aiming for 100 bryophytes for the year and with a little help, I have got to 107 species. So anything I can gain here I can take off my ridiculously high moth target of 850 species. Here's the totals so far...
Many thank to everyone who has sponsored me so far, please do consider sponsoring me if you can, I am fund raising for Sussex Wildlife Trust's reserves
here.
You can sign up to the pan-species listing website
here, it's totally free (although donations to the team are welcome).
And finally, my book is due to be released on the 26th Feb, two weeks today!!! You can order it
here, directly from Pelagic. Getting some great feedback.
At the end of week 1, I reached 564 species (I am actually on 565 as of today as I saw some Large White pupae on my friends wall this morning). I ended week 1 with a much needed day out at Iping and Stedham Commons and added nearly 120 species, over a quarter of which were spiders. I had a Zora silvestris on Stedham Common (it is well-known from Iping Common but this might be first time I have seen this Critically Endangered and Nationally Rare spider this side of the road), and a whole load of scarce spiders even though much of the ground was still frozen. Persistence pays off!
Here's a list of the nice spiders I had yesterday and their statuses.
Zora silvestris - CR & NR
Lathys heterophthalma- Vulnerable & Nationally Rare
This is easy to find by suction on the shorter, managed areas of open heath at Iping. Seems to like very dry areas here, and can be found in numbers even on a freezing cold day in Jan!
Here's the real exciting one!
Centromerus brevipalpus - Endangered & Nationally Rare
This is the first record for Iping Common since 1969! And it means on the SRS page I will be turning the black cross back to a black dot. This spider has more locations in West Sussex than anywhere else, so I was pleased to sieve a tiny female from moss under trees at Stedham. I have only seen this spider twice before, so I have three records from three West Sussex hectads now. It's also a winter active species, so is exactly the kind of thing I need to be targeting at the moment.
Also
Hypsosinga sanguinea - NS
Hypsosinga albovittata - NS (ticked it on the 1st at Malling)
Kochiura aulica - NS
Scotina celans - NS
Scotina gracilipes - NS
Episinus truncatus - NS
Monocephalus castaneipes - NS & S.41
Agyneta mollis - (NR, NT & S.41) lol. I have had this spider every day I have been out with the sucker this year, it's a 1st January kinda species and shouldn't even be Nationally Scarce!
Not scarce but Aphileta misera is not an easy spider to find in Sussex and I recorded the first Tallusia experta at Iping 1968! I forgot just how awesome sieving moss for spiders is in winter, this is really bringing back fond memories of those three years of spider year-listing (although Sphagnum in the open was frozen solid yesterday). I've seen 74 spiders so far this year.
But you do find loads of other stuff when looking for spiders in winter. Obviously all the heathland plants were new yesterday, as were Lapwing, Mallard, Coot and Grey Heron as I drove to site, as well as Crossbills, Dartford Warbler, Linnet and Stonechat on site!
I beat some nice things off pine, including oddly a Juniper Shieldbug, which was new to the site.
Everyone's favourite wafer-thin ground bug Gastrodes grossipes.
And a gorgeous Striped Ladybird. I even saw a queen Bombus terrestris yesterday on Gorse!
My number one target on the website (the species that most other pan-species year listers have seen, that I have not) is currently Mute Swan (with my first non-bird target being Roe Deer).
This followed a quick but icy lunchtime walk around Withdean Woods on the 6th, where I found Pomatias elegans, one of very few land snails with an operculum. I always think they have the fire on in there and are watching something nice on TV with a brew. 23 molluscs for the year!I had a great day out at Woods Mill on the 2nd with Henry Miller. Orange Ladybird was a highlight.
Karen and I started the year with a bang on the 1st Jan at Malling Down. You have to work a little harder when it is this cold but there was still plenty to see. Like Round-headed Rampion if you know what the leaves look like.
I have seen 218 species of invertebrate species in the first week of one of the coldest weeks of the decade, so I am pretty pleased with that. Being used to doing lots of winter work for spider really helps here. I have still not been rock-pooling, waiting for some low tides in day light. The great thing with this game is there is always something else to do, so my game plan is to not go out when conditions are not really good.
So here's my overall progress so far
Now I am not out again until Saturday, when I am going out spidering again with my friend Jame Chisnall.I am fund raising for this for the management of Sussex Wildlife Trust's nature reserves, so please do consider donating on my JustGiving page.
And if you want to learn more about the pan-species listing approach to natural history, please have a look at my book here which is out very soon.
Now, will I find anything new for the year on my way to Hove Town Hall?...
I have had a break from social media for the last month. This was triggered by a period of feeling really unwell for a while, a trip to A&E after six hours of agonising stomach ache and nausea and a yellow eye (of course, I still went rock-pooling in the dark in gale in this state). I self-diagnosed gallstones and this was confirmed by an ultrasound at the hospital. A radical and rather rapid change in what and how I eat has been extremely successful but it was really scary at first. Every time I ate something it was like playing Russian roulette with my dinner. So the only way to play it was to eat the perfect diet. Not only have I not had a serious attack for nearly four weeks, but I actually feel healthier than I ever have! So I used that time to get my head down and write up a lot of reports.
So, back to 2025. This was a tough year to rank, there were so many red letter days last year. I love the pan-species listing approach to natural history, even 15 years into it (and 38 years since I made my first biological record) there are still countless encounters of amazing wildlife to see and record in the British Isles. So to celebrate that, with each of these ten I will also give a reason to get into pan-species listing. In reverse order then...
10). My first encounter with Eelgrass beds
Back in March, Mark Telfer took me to Seaview on the Isle of Wight where I saw my first Straight-nosed Pipefish! Also on that trip I found these things new to the Isle of Wight at Bembridge Ledges. Sarcodityon catenatum.
PSL pushes you outside your comfort zone into ever strange new worlds of natural history!
9). Surveying the farmland around Brighton
This is an ongoing project I am doing for BHCC. I found a population of Woolly Thistle, the first in Sussex for many years.
A population of Tettigometra virescens was new to Sussex! This is landscape is vitally important for biodiversity.
If you work anywhere hard enough and long enough with PSL, it will come up with the goods.
8). Completing pipefish on Helford Sound in Cornwall
I spent a great day with Finley Hutchinson down on some more Eelgrass beds just round the corner from Falmouth. Deep-snouted Pipefish was a highlight, as it was my sixth and final pipefish in the UK! Yet finding Acanthocardia paucicostata new to me (and Cornwall) was a real highlight!
Some of the best PSL days are when you don't have any targets and you just find what you find.
7). The arable margins of the Norfolk Estate
This might have been the sixth year I have monitored these same eight margins, but in 2025 they were rocket fuel for migrants and recent colonists. I love living on the south coast! The first confirmed breeding of Carporcoris purpureipennis in the UK was great and a lifer for me!
Yet I think finding my first ever Small Marbled was my highlight.PSL is all about the long game. PSL definitely works best the earlier you start and as such, you could play this game for your whole life!
6). My third trip to Jersey
Now, I have to say it's testament to the following five highlights that Jersey rockpools are not higher up this list! A huge thanks to Nicolas Jouault for showing us around the marine habitats of the island. He was so generous with his time and I learnt so much from him. I was so glad to be there when he found Discodoris rosi new to the island. This absolute unit is Dendrodoris limbata. In fact, 2025 was the year of the nudibranch for me. I have seen 35 species so far in my life, ALL of which I also saw in 2025.
The main PSL listing area is 'Britain, Ireland, Isle of Wight and Channel Islands' and it's important to state we are not a recording platform. PSL is something you do as well as recording, not instead of.
5). Praying Mantis on the Isle of Wight
Seeing these breeding Praying Mantis with Mark Telfer was an absolute dream come true, this is probably the only twitch I did last year! In a normal year this should been number 1!
That evening, Karen I went to Bembridge Ledges and found this mollusc new to the island! Galeomma turtoni.
No PSL twitch ever happens in a vacuum. Even if you do dip, there's always a plan B...
4). Oh gawd this is getting tough now! You know it's an insane year when Rainbow Sea Slug isn't even in the top three!
It was a dream come true seeing three Rainbow Sea Slugs down at Falmouth with a whole bunch of keen PSLers, rockpoolers and naturalists.
It would seem you can't go out rockpooling at Falmouth now without seeing Spurilla neopolitana now too! Insane considering it only turned up in September.
PSL is about collaboration and cooperation, we all help each other out. If you have focused on the competitive side, you have totally missed the point. There are no losers in this game.
3). Meeting a whole bunch of brilliant Gen Z naturalists at Menai (and their sea slugs)
Meeting Nathan, Yolanda, Cameron and friends under Menai bridge several times this year was amazing, as well as seeing loads of amazing nudibranchs they have given me hope for the future! They're already brilliant naturalists, I am glad they've caught the PSL bug too! Here is Trinchesia cuanensis.
And Coryphella lineata. Just a few of the amazing beasts they showed me!
PSL is a really sociable way to do natural history. Yes, you can do it on your own but it's more fun to share some of it at least, some of the time and I have made a lot of great friends along the way.
2). Two days snorkelling on The Ecrehous
Thanks to Nicolas Jouault again, I had an amazing two days snorkelling on the uninhabited islands between Jersey and France. Black-faced Blennies were the commonest fish!
And this bonkers looking crustacean, Axius stirhynchus was a real highlight. I couldn't get out of the water. Amazing considering not two years ago I was frightened of putting my face in the water!
PSL breakdowns barriers and encourages you to be fearless - whether tackling a new group or jumping face first into a rockpool!
1). Finding Aulonia albimana on the Isle of Wight with Mark Telfer
This was the first record of Aulonia albimana in the UK in 40 years! It was a very exciting day and led to me sitting on the sofa on BBC Breakfast. The story got amazing coverage, I did six interviews and I think something like 70 media outlets ran the story!
The morning after we found the spider, at 5.00 am I went down to Bembridge Ledges and found another new nudibranch for me, it was only the second record for the island! Trapania tartanella!
PSL is great fun, it's exciting, it opens doors. Literally anything can happen at any time. So why not sign up now? It's free and the 1st January is a great time to start something new.
A quick update on the book. Publication has been put back a little to the 26th February! Not long now, you can pre-order it here.
Now it's time to start my 2026 challenge, to see 6,000 species over the year! I have seen a Human so far, so I better get to work! Yo can follow my progress on the website, only 5,999 species to go. Happy listing!
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