BC Upper Thames
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upperthames.bsky.social
BC Upper Thames
@upperthames.bsky.social
500 followers 390 following 29 posts
The Upper Thames Branch of Butterfly Conservation; the national charity saving butterflies, moths and our environment
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A very enjoyable UTB Members Day and a big thank you to the 4 excellent speakers. And a thank you to all UTB members working behind the scenes to make the day run smoothly and of course all who attended!
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Trapping around Cothill Fen this week produced some nice moths including Clifden Nonpareil! Evergestis limbata was the rarest to turn up, and it was nice to see Vestal and other migrants #teammoth @freshwaterhabitats.bsky.social @upperthames.bsky.social @bbowt.bsky.social @migrantmothuk.bsky.social
It wouldn't have been seen in this area a few years ago, but it is a butterfly that is extending its range fairly rapidly.
Brown Hairstreak, adult and egg, recorded on the outskirts of Caversham, near Reading, Berks, today.
The annual Barberry Carpet survey yesterday, at the only Upper Thames site. 22 larvae from 23 bushes sampled, so seems to be holding on okay. A couple of Vestal also seen which is always a nice bonus!
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Just a sliver of deadwood with some bark on? Fresh from the rearing pot, a Red Sword-grass Xylena vetusta. Caterpillar swept from meadowsweet & fed on it. what a docile spectacular #moth Oxon, Hinksey Hts fen. @freshwaterhabitats.bsky.social @upperthames.bsky.social
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Doing moth trapping in the UK this weekend?
Can you help us gather lots of images of moths on egg cartons from your trap?
Help us develop a tool making moth recording easier for more people
Tks! #mothsmateer #teammoth
@richardfoxbc.bsky.social @savebutterflies.bsky.social
@upperthames.bsky.social
Do you do moth trapping in the UK? We'd love your help! 💡

At @ukceh.bsky.social we're training & testing AI to detect multiple moths in a single image.

Send us top-down photos of multiple moths on egg trays to support this work.

More info & form: forms.gle/e3HzBPEd7RVV...

#mothsmatter #TeamMoth
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I'm thinking this is the last Gatekeeper sighting of 2025 for me. @upperthames.bsky.social Walking on the water at 50 Acre Piece. 16/08/25
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Silver-spotted Skippers, seen yesterday at Aston Rowant NNR, Oxon.
@savebutterflies.bsky.social @upperthames.bsky.social
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Adonis and Chalkhill Blues from Aston Rowant NNR, Oxon, and Common Blue from Hazelborough Woods, Northants today.
@savebutterflies.bsky.social @upperthames.bsky.social
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@upperthames.bsky.social . Thanks to Grahame Hawker for guiding us at 50 Acre Piece today. Despite overcast and cool weather we saw plenty of the target species. My first ever Grayling. And a Potter Wasp "pot". A valuable addition to the mosaic of habitats in transition.
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Delighted to spot this pristine Brown Hairstreak butterfly this morning in the Lye Valley, Oxford, the first adult I've ever seen there!
#Recorded #UKWildlife #WildlifePhotos #inverts #OX3
@friendlyevalley.bsky.social @tverc1.bsky.social @upperthames.bsky.social
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The "scrapes" we created and sowed with native plants in the amenity grassland at Rock Edge are proving popular with the last of the summer's butterflies. Here a Common Blue (Polyommatus icarus) is nectaring on the copious Marjoram still in flower.
#UKButterflies @upperthames.bsky.social #Oxford
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Added Adonis Blue and Silver Spotted Skipper to species sighted in '25 . Aston Rowant NNR today in better weather than was forecast. @upperthames.bsky.social
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OK, so it's a dreadful photo, BUT, it's the first adult Brown Hairstreak (Thecla betulae) butterfly we've *ever* seen at Rock Edge. We routinely count the eggs over winter, but until now, the adults have remained elusive...
#UKButterflies #UKWildlife @upperthames.bsky.social @judywebb.bsky.social
No, its a Tree-lichen Beauty
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Great to spot this fresh Painted Lady (Vanessa cardui) butterfly in the Valley this morning. Not seen many here this year. Is anyone else seeing them? 🤔
#UKButterflies #inverts #UKWildlifePhotos #recorded
@upperthames.bsky.social
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Silver-spotted Skipper beginning to emerge at Aston Rowant NNR. Six counted 25/7/25.
@rowantnnr.bsky.social @upperthames.bsky.social @savebutterflies.bsky.social
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My 46th species of UK butterfly yesterday at Grangelands, Bucks; Silver-spotted Skipper. Also, Chalkhill Blues. @upperthames.bsky.social @savebutterflies.bsky.social
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Today's the day ! It's launch day for the #BigButterflyCount . . .

Get out between now and 10th August for 15 minutes and count the butterflies you see & help the great citizen science of @savebutterflies.bsky.social ! Get involved at bigbutterflycount.org
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With only 1 prev record (‘24) at Watermead, I watched the same small Oak beside the R.Thame for 1/2hr & was rewarded with a single PURPLE HAIRSTREAK…
+ only the 3rd rec. of BROWN ARGUS here on the bank.

@chilternsnature.bsky.social @upperthames.bsky.social #butterflies #nature #wildlifephotography
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In #LyeValley #fen rare Parsley Water Dropwort Oenanche lachenalii is doing exceptionally well & in cooler mizzly rain I managed a closer look at the wings of a Green Veined white butterfly, never noticed spots before.. @friendlyevalley.bsky.social @bsbibotany.bsky.social @upperthames.bsky.social