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Reposted by Duerden Cormack

James McCulloch @jamesimcc.bsky.social · 17/09/2026

New species now out in @soilorganismsj.bsky.social! soil-organisms.org/SO/article/v... The latest addition to the UK's springtail fauna: Entomobrya terraeincognitae sp. nov. I found this species on fieldwork for my PhD @sangerinstitute.bsky.social at the Cambridge botanics. 🧵

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Reposted by Duerden Cormack

Jo Parmenter @jo-the-botanist.bsky.social · 19/07/2026

#NorfolkFloraGroup visited #RSPB 's Hope Farm yesterday- thank you so much @duerden.bsky.social for showing us around and answering lots of questions. We made over 300 records, and were especially pleased to see broad-leaved spurge and slender tare, amongst many other lovely plants.

the warty fruits of Euphorbia platyphyllos

a surprise find of sand lucerne Medicago nothospecies varia - a new hectad record

Chenopodium strictum - new for the hectad

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Duerden Cormack @duerden.bsky.social · 24/06/2026

Second, the non-native slug Arion vulgaris found on an early morning bird survey. Confirmed by dissecting out the genitalia and opening the oviduct to reveal an elongate, un-fringed ligula! #Pan-speciesListing

Elongate, un-fringed ligula inside the oviduct

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Duerden Cormack @duerden.bsky.social · 24/06/2026

Two new records for RSPB Hope Farm this week. First, what I think is Galium × ⁠pomeranicum the hybrid between Hedge Bedstraw (G. album, left) and Lady's Bedstraw (G. verum, right). The Hedge Bedstraw especially has become quite dominant in these sown, in-field strips. (1/2)

Galium × ⁠pomeranicum between its parents, G. album and G. verum

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Duerden Cormack @duerden.bsky.social · 18/06/2026

Trachypepla contritella, the Kiwi Enigma, has turned up at RSPB Hope Farm. Perhaps a slight (15km) range expansion #TeamMoth

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Duerden Cormack @duerden.bsky.social · 16/06/2026

Perhaps I was just lucky but there were two sat on top of the first plant I looked at!

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Duerden Cormack @duerden.bsky.social · 16/06/2026

Heath Snail, Knapweed Broomrape, Field Fleawort, and Bastard-toadflax and it's specialist shieldbug Canthophorus impressus on Therfield Heath, Herts today #Pan-speciesListing

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Duerden Cormack @duerden.bsky.social · 11/06/2026

Yeh they're great! Might have to get one 😁

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Duerden Cormack @duerden.bsky.social · 11/06/2026

Great photos! Are you using an Olympus TG?

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Duerden Cormack @duerden.bsky.social · 31/05/2026

A few nice finds from Woodwalton Fen, Cambs this week: the King Diving Beetle Dytiscus dimidiatus, the ant-mimic jumping spider Synageles venator, and (reintroduced) Fen Violet! #Pan-speciesListing

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Duerden Cormack @duerden.bsky.social · 28/05/2026

That's it! Worth putting on iRecord

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Duerden Cormack @duerden.bsky.social · 25/05/2026

The infected parts (fruits?) go white and swollen, like little marbles

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Duerden Cormack @duerden.bsky.social · 25/05/2026

Yes I think my colleagues are please with it!

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Duerden Cormack @duerden.bsky.social · 25/05/2026

I actually just cheated and picked it from our Winter Wheat field! It is Extase

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Duerden Cormack @duerden.bsky.social · 25/05/2026

Thanks Philip! That systematics paper is really useful, I prefer their approach of lumping them into ssp. each with varieties and cultivars. That approach is suggested by Cope and Gray, and Stace but still unsure why they say Six-rowed is rarely cultivated. I'll lump them in my notes!

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Duerden Cormack @duerden.bsky.social · 25/05/2026

I thought Winter Barley = Six-rowed = Hordeum vulgare s.s and Spring Barley = Two-rowed = H. distichon but Stace, Cope and Gray, BSBI etc say Six-rowed is "rarely cultivated" in Britain. Can anyone help? @amiesphilip.bsky.social @bsbibotany.bsky.social @bramblebotanist.bsky.social 2/2

Spikelet from roadside Spring (?) Barley

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Duerden Cormack @duerden.bsky.social · 25/05/2026

I have been trying to identify some roadside cereals today but am a bit confused about Barley taxonomy! (IDs in ALT text) 1/2

Roadside escapes. I think these are (L-R) Triticale x2 and Spring Barley?

I think these are (L-R) Bread Wheat, Triticale x2, Winter Barley x2, Spring Barley

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Duerden Cormack @duerden.bsky.social · 23/05/2026

Looks like it has the bonus fungus Anthracoidea subinclusa on it too!

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Duerden Cormack @duerden.bsky.social · 23/05/2026

Yellow-juiced Poppy, Papaver lecoqii, at RSPB Hope Farm this week.

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Duerden Cormack @duerden.bsky.social · 23/05/2026

Bird's-foot Sedge was a satisfying chance find in Cressbrook, Derbyshire recently!

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Duerden Cormack @duerden.bsky.social · 13/05/2026

Yes, agree. "Weed"/"weedy" are better descriptors of food plants for e.g., Linnet and Turtle Dove than "wildflower" too

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Duerden Cormack @duerden.bsky.social · 12/05/2026

Nesting season is well under way at RSPB Hope Farm, many of these eggs have hatched (or been predated) by now - Linnet, Starling, Jackdaw, and Blackcap #NestRecordScheme @cambsbirdclub.bsky.social

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Duerden Cormack @duerden.bsky.social · 12/05/2026

Judging by this small patch at RSPB Hope Farm, you can appreciate how Shepherd's-needle was once a serious arable weed! #WildflowerHour

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Reposted by Duerden Cormack

Vanna Bartlett @vannabartlett.bsky.social · 12/05/2026

After months of work my Norfolk Pseudoscorpion guide for @norfolknats.bsky.social is now on the website free to see/download. Covers 20 species recorded in Norfolk so hopefully useful for other areas of UK. norfolknaturalists.org.uk/wp/wp-conten...

Dendrochernes cyrneus, a large pseudoscorpion with robust shiny, blackish claws on a piece of tree bark.

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Duerden Cormack @duerden.bsky.social · 03/05/2026

Oxyloma sarsii is supposed to be a rare species of broadland and fen but it turns out to be abundant at this dual carriageway mitigation pit in Cambs! Always worth double checking these things #Pan-speciesListing

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Reposted by Duerden Cormack

Sophie Mott @sophiemott93.bsky.social · 25/04/2026

Will be buzzing if anyone can confirm if this is a Blue-headed Wagtail (2nd year female?). Private site in Huntingdon this evening 😃 @cambsbirdclub.bsky.social #UKBirding

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Duerden Cormack @duerden.bsky.social · 23/04/2026

Adder's-tongue was a surprising first record for RSPB Hope Farm this week! 73 plants near a pond in old permanent pasture. The grazing regime has been relaxed in the last couple of years which could explain why it has not been found before.

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James Harding-Morris @jameshardingmorris.bsky.social · 11/04/2026

It's not often you see two new fish in a day, let alone two new new non-native invasive fish. Following on the from the Sunbleak netted earlier, I also saw Topmouth Gudgeon, Pseudorasbora parva, a species in the process of being eradicated from Britain.

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Duerden Cormack @duerden.bsky.social · 09/04/2026

This Ring Ouzel dropped vertically out of the sky into the tallest elm on this ridge at RSPB Hope Farm today. A nice one for #PWC2026! @cambsbirdclub.bsky.social

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Duerden Cormack @duerden.bsky.social · 05/03/2026

There are normally three characters on the nasal saddles of these French Tufted Ducks. One in the middle, two on the side. Yours could be something like "FB=" but pictures from other angles might confirm

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Duerden Cormack @duerden.bsky.social · 01/03/2026

It was nice to spend some time watching the Black-tailed Godwits near Over today. I counted 973 and managed to read a few colour-rings @cambsbirdclub.bsky.social

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Duerden Cormack @duerden.bsky.social · 28/02/2026

Last weekend, @bsbicountries.bsky.social and I made the "pan-species listing pilgrimage" to southeast Wales to meet Christian Owen and see all the amazing soil creatures there! @panspecieslisting.bsky.social

The Celtic Ghost Millipede (Psichrosoma cf. breuili)

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Reposted by Duerden Cormack

Richard D. Gregory @richgreg3.bsky.social · 20/02/2026

Great winter bird count with the team at @rspb.bsky.social Hope Farm this morning - impressive numbers of farmland birds - grey partridge, corn bunting, reed bunting, yellowhammer, linnet, skylark, fieldfare, snipe, kestrel & a merlin flyby 🐦 @rspbscience.bsky.social

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Duerden Cormack @duerden.bsky.social · 08/02/2026

Successful day reading Whooper rings in the Fens today. @birdergirl.bsky.social's Tundra Bean Geese still at RSPB Ouse Fen were a good bonus! @cambsbirdclub.bsky.social

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Duerden Cormack @duerden.bsky.social · 01/02/2026

Yes that makes sense, great video

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Duerden Cormack @duerden.bsky.social · 01/02/2026

I'm reading Bird's Nests (Bruce Campbell, 1953) ahead of spring and it contains this photograph. No location but the background trees look shredded to me

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Duerden Cormack @duerden.bsky.social · 11/01/2026

You were right about it being from Blunham! First resighting since being ringed there January 2024

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Duerden Cormack @duerden.bsky.social · 11/01/2026

I've had one at WWT Slimbridge that had been ringed in Shropshire so you never know! I think it's Project Penelope, will send it off later

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Duerden Cormack @duerden.bsky.social · 11/01/2026

Ferruginous Duck at Diddington Pits. Just as pleased to get this colour-ringed Wigeon on the ice! @cambsbirdclub.bsky.social

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Duerden Cormack @duerden.bsky.social · 10/01/2026

For clarity, at Diddington this morning: drake Ring-necked Duck, female Scaup, redhead Smew, 2 Pintail, 2 R-c Pochard, 380+ Tufted Duck, c.500 Pochard, 168 Teal, 10 Goldeneye, 350 Wigeon. Great birding! @cambsbirdclub.bsky.social

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