17th October
16th October
Two Yellow-browed Warblers from the first looks at the Obs and CEF nets this mrng
— Portland Bird Observatory (@portlandbirdobs.bsky.social) October 16, 2026 at 8:36 AM
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Portland Day 5 - much promise did almost deliver. A personal best of 13 Woodlark over, Yellow-browed Warbler dropping out of the sky onto a fence (earlier ringed at the obs) great vismig of Pigeons, Stock Doves etc. Black Red in the bill quarry, we continue!! First post birding pub visit, superb!!
— Joe Stockwell (@joestockwell.bsky.social) October 16, 2026 at 8:53 PM
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Last night's Obs garden mothing didn't really hit the mark - plenty of routine migrants on the wing but a Toadflax Pearl the only notable oddity
— Portland Bird Observatory (@portlandbirdobs.bsky.social) October 16, 2026 at 11:31 AM
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Portland bill when tuna watching: an ”is that a bat ???” round the obelisk turned out to be a Monarch which moved north low over the roped off area & lost as I faffed with the camera c15:00 @dorsetbutterflies.bsky.social @migrantmothuk.bsky.social Still plenty of clouded yellows inc helice
— Steve M (@steveweynature.bsky.social) October 16, 2026 at 9:27 PM
Freshwater Bay @portlandbirdobs.bsky.social overnight 14/15 Oct. with 2 MV, 1 actinic and 1 Lepi-LED -highlights were a very worn Gem, 1 Tebenna micalis and 1 Small Marbled (first for a few weeks); also 3 Vestal, 3 SBS, 1 Clancy's Rustic. 4 P. vitrealis @migrantmothuk.bsky.social
— alanlewiswildlife.bsky.social (@alanlewiswildlife.bsky.social) October 16, 2026 at 7:20 PM
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Freshwater Bay @portlandbirdobs.bsky.social overnight 15/16 Oct. with 2 MV, 1 Lepi-LED, 1 ORI lure - highlights were 2 Slender Burnished Brass (to ORI) and my second E. ocellea in two weeks; also 4 Vestal, 4 SBS, 1 White-speck, 2 Pearly Underwing, 3 P. vitrealis @migrantmothuk.bsky.social
— alanlewiswildlife.bsky.social (@alanlewiswildlife.bsky.social) October 16, 2026 at 7:28 PM
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As always, @portlandbirdobs.bsky.social delivered some good scarcities during 14-16/10 with a remarkably well marked Porter's Rustic, the gangly Toadflax Pearl (A. catalaunalis) and Slender Burnished Brass (to ORI, two days prior) - my fifth of this stunner in a week! @migrantmothuk.bsky.social
— alanlewiswildlife.bsky.social (@alanlewiswildlife.bsky.social) October 16, 2026 at 7:45 PM
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15th October
Portland Day 4 - A late start today as I had my little girl for a while in the morning. Managed to get out for a few hours after and pretty soon jammed in to my first Yellow-browed Warbler of the autumn, a good session in the Grove area also revealed a Firecrest, lots of Chiffs, Blackcaps etc.
— Joe Stockwell (@joestockwell.bsky.social) October 15, 2026 at 5:35 PM
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Fair numbers of migrants from the Obs moth-traps again last night with singles of Beautiful Twitcher T micalis and Porter's Rustic the best of the new arrivals; Autumnal Rustic nice for us as it was the first for 8 years and only the 13th ever
— Portland Bird Observatory (@portlandbirdobs.bsky.social) October 15, 2026 at 10:09 PM
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With the nights drawing in and some noticeably cooler weather on the horizon, it's hard not to find your mind wandering back to the balmy nights of summer and what was another successful season of Storm Petrel ringing at the Bill. Across 11 sessions (and one or two duds early and late in the season when we tried but didn't actually catch anything!), a total of 52 new birds were ringed, marking the third highest annual total after 121 in 1994 and 66 in 2025. The high encounter rate of Storm Petrels after ringing always produces fascinating movement data and this year was no exception, with 12 birds captured already sporting rings from elsewhere - 5 from Alderney, 4 from Skokholm, 2 from France and 1 from the Isles of Scilly; in addition, 14 Portland ringed birds were recaptured away from the island, with 12 from Alderney, 1 from the Isles of Scilly and 1 from St Abbs Head.
14th October
Portland Day 3 - Wasn't great! Although the standout highlight was the Red-backed Shrike re-trapped, my first seen in hand since a female I caught in 2013. A Corn Bunting, quite a good number of Stonechat, Robins and Dunnocks revealed some movement afoot but little esle to show for the legwork.
— Joe Stockwell (@joestockwell.bsky.social) October 14, 2026 at 7:09 PM
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After a quiet-ish few nights for migrant moths there was a big improvement last night in numbers at the Obs gdn moth-traps + a Slender Burnished Brass to the ORI lure donated to us by @alanlewiswildlife.bsky.social. Our first ever October Little Grass-moth P cerussella was an out of season oddball
— Portland Bird Observatory (@portlandbirdobs.bsky.social) October 14, 2026 at 2:18 PM
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Small (7mm) but perfectly formed, the Small Marbled, an immigrant moth it will breed in the UK in a hot summer #MothsMatter
— Debra Saunders (@debbyseamist.bsky.social) October 14, 2026 at 11:50 AM
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13th October
A murky, damp and very windy night - conditions that dragged on for a while after dawn - didn't look at all likely to have done us any favours and once the clearance arrived fieldwork largely drew a blank. The Red-backed Shrike did resurface at the Bill, with a couple of Great Spotted Woodpeckers and a Cetti's Warbler also likely to be lingerers but a Merlin, a Reed Bunting and fair numbers of Blackcaps and Chiffchaffs were all that could be mustered on the ground. It was just as slow overhead, with a handful of Siskins the only variety amongst the trickle of departing Swallows and Linnets. With the wind quickly veering into the northwest the only worthwhile rewards from the sea were 3 Arctic Terns and 2 Arctic Skuas.
After being missed yesterday the Red-backed Shrike resurfaced in today's pleasantly warm sunshine © Mark Eggleton:
Portland Day 2 - Note the scenic image of where an American Pipit should have been! One of the many coves and mini-beaches checked after a very unproductive morning seawatch. The leafier areas around Wakeham/Mermaid looked superb this afternoon but equally as quiet for now...
— Joe Stockwell (@joestockwell.bsky.social) October 13, 2026 at 4:17 PM
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12th October
Portland Day 1 - Yes, I'm at it again! A slow start with strong S wind + stubborn drizzle, eventually a few hundred meters of sea became visible so that was the order of the day! 13 Sooty, 9 Arctic Skua, Great Skua, Arctic and Common Tern, GN Diver, 2k Auks, 800 Kittiwake, better than expected!
— Joe Stockwell (@joestockwell.bsky.social) October 12, 2026 at 5:33 PM
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Good to chat with Martin Cade watch Red-backed Shrike & a 2 mm long extremophile beetle Octhebius lejolisii, somehow it survives in splash zone pools with extremes of heat and dessication, true survivors that will probably still be going strong when we are all gone! @portlandbirdobs.bsky.social
— John Walters (@johnwalterswildife.bsky.social) October 12, 2026 at 7:46 AM
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Red-backed Shrike Lanius collurio, Crown Estate Fields, @portlandbirdobs.bsky.social Dorset yesterday
— John Walters (@johnwalterswildife.bsky.social) October 12, 2026 at 11:29 PM
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11th October

10th October
9th October
A stiff westerly that set in overnight freshened towards gale force as the day went on and scuppered most serious fieldwork today. The Red-backed Shrike was still present in the Crown Estate Field, singles of Merlin and Short-eared Owl were new at the Bill and 2 Purple Sandpipers were still present there but otherwise little more was logged on the land than a scatter of Chiffchaffs in sheltered spots and the Ferrybridge Brent Goose flock that had increased to 116. Singles of Balearic Shearwater and Arctic Skua passed through on the sea at the Bill.
A settled Short-eared Owl in Top Fields a nice find for Verity on her way down to the Obs this morning; ta to Jack Crowe for the photo
— Portland Bird Observatory (@portlandbirdobs.bsky.social) October 9, 2026 at 9:37 AM
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Ferrybridge this morning 116 Brent Geese, 6 Bar-tailed Godwit, Sanderling, Wheatear
— Debra Saunders (@debbyseamist.bsky.social) October 9, 2026 at 10:05 AM
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Strong SW winds and rain overnight with gale force winds aii day at PBO @portlandbirdobs.bsky.social curtailed any mist netting and ringing. In this my last missive before return to Cardiff I must thank 'birdwhisperer' Martin Cade & Jodie Mae Henderson for company & the pictures used over 13 days.
— Peter J Morgan (@pbo61.bsky.social) October 9, 2026 at 9:06 PM
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Southern Bridled Green @portlandbirdobs.bsky.social photographed 08/10/26 with a Brindled Green for comparison taken on the same day at Dartford, thanks to @dartfordtrapper.bsky.social - a handful of records from Dorset and a recent one from Scilly. @saturdaycatbird.bsky.social
— alanlewiswildlife.bsky.social (@alanlewiswildlife.bsky.social) October 9, 2026 at 8:22 PM
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8th October
Dawn at PBO @portlandbirdobs.bsky.social with lightish N wind saw an exciting day of ringing with a 1stYm Dartford Warbler followed by a 1Y Red backed Shrike then Comm Snipe and GS Woodpkr. 133 birds of 14 species.incl 60CC, 53 Blcp, 3Song Th. were ringed. Oct. total now is 1061 birds of 36 spcs.
— Peter J Morgan (@pbo61.bsky.social) October 8, 2026 at 6:51 PM
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7th October
Heavy rain overnight not clearing until noon was followed by gusty N/NW winds at PBO. @portlandbirdobs.bsky.social Limited to only a few nets 32 birds eventually ringed, 22 CC, 8 Blackcap, 1 Wren & 1 Song Thrush. Crown Estate field with cover and two new ponds excavated. Hobby obs bird of the day.
— Peter J Morgan (@pbo61.bsky.social) October 7, 2026 at 7:30 PM
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6th October
Cloud cover at dawn PBO @portlandbirdobs.bsky.social with 179 birds of 15 species ringed. Primarily CC 132, 18 Blacap, 7 Stonechat, 2 Song Th, 1 of GardenW, GrasshopperW, Whinchat,Goldcrest & Blackbird of note +Rtrp CettisW. Pond creation at PBO haven for bathing & preening migrants,Spring& Autumn.
— Peter J Morgan (@pbo61.bsky.social) October 6, 2026 at 7:59 PM
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Portland - First Redwing of the Autumn near The Hump. Wheatear 3, Linnet 160, Goldfinch 75 Top Fields. Chiffchaff 100+, Grasshopper Warbler Culverwell ringing station. @portlandbirdobs.bsky.social @dorsetbirdclub.bsky.social
— Dorset Bird Tours (@dorsetbirdtours.bsky.social) October 6, 2026 at 9:10 PM
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Obs moth-traps quietened a little last night but still a pretty decent catch of migrants with a Toadflax Pearl catalaunalis the best of the new arrivals
— Portland Bird Observatory (@portlandbirdobs.bsky.social) October 6, 2026 at 11:43 PM
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5th October
A pretty ripping morning saw a good cloud cover and no more than a waft of a breeze drop a succession of scarce migrants that included 4 Yellow-browed Warblers, a Little Bunting, a Siberian Chiffchaff and a Cetti's Warbler at the Bill and another Yellow-browed Warbler at Southwell; the long-staying Barred Warbler was also still at the Bill, whilst a further miscellany of irregulars around the island that included the likes of multiple Great Spotted Woodpeckers and singles of Hobby, Woodlark and Firecrest all added to the excitement. These goodies arrived in tandem with a hatful more Chiffchaffs and Blackcaps - including 300 and 150 respectively at the Bill alone - and lots of other grounded routine migrant variety, along with a steady if numbers-wise less impressive flow of visible migrants overhead; the tardy or interesting in other ways list from around and about included 4 Yellow Wagtails, 2 Redshanks, 2 Purple Sandpipers and singles of Golden Plover, Common Sandpiper, Whimbrel, White Wagtail and Whinchat. There were rather too many distractions for full attention to be paid to the sea but off the Bill a resurgence in departing Lesser Black-backed Gulls was noted along with the recently customary 2000 or more auks and singles of Sandwich Tern and Arctic Skua.
This morning's Little Bunting - small but very perfectly formed! © Martin Cade:
Full cloud cover and light W wind at dawn PBO. #Portlandbirdobservatory A fall resulted in 212 birds of 14 species+ 1 ssp ringed. CC 115+ SibCC, Blackcap 65,Other Sibs included Yellow browed warblers 3 and 1 Little Bunting. 7 Stonechat broke the year ringing record with 113 this year.(107 in 2025).
— Peter J Morgan (@pbo61.bsky.social) October 5, 2026 at 7:46 PM
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A third Yellow-browed Warbler of the day - this one for @slashercutts.bsky.social at Culverwell - all these are being colour-ringed as part of a national project to track their subsequent movements
— Portland Bird Observatory (@portlandbirdobs.bsky.social) October 5, 2026 at 12:40 PM
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Sadly the Sorcerers weren't on the wing for us last night but in all other respects it was an excellent night for migrant moths at the Obs, with a bumper catch of routine fare together with our second ever Southern Brindled Green + another Porter's Rustic
— Portland Bird Observatory (@portlandbirdobs.bsky.social) October 5, 2026 at 2:25 PM
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...just realised we forgot to post the night's full totals
— Portland Bird Observatory (@portlandbirdobs.bsky.social) October 5, 2026 at 6:11 PM
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4th October
The loveliest of days to be out birding in unbroken sunshine and summer warmth - conditions that wouldn't usually be viewed as favourable for a good drop of migrants but in the event there were birds in quantity everywhere. The trio of Meadow Pipit, Chiffchaff and Blackcap accounted for a good proportion of the groundings - reaching totals of 1000, 300 and 200 respectively at the Bill alone - but there were strong showings of good range of other arrivals amongst which shorter-range migrants such as Dunnock, Robin and Stonechat were particularly prominent; thrushes have barely figured at all so far this autumn so the first Song Thrush of the season was hopefully the vanguard of plenty more to come. Overhead passage wasn't quite so prominent with hirundines rather oddly almost completely absent, but totals of 800 Meadow Pipits, 280 alba wagtails, 200 Linnets, 65 Skylarks and 35 Chaffinches were all worthwhile at the Bill, with singles of Great White Egret and Woodlark there and 2 Bramblings and a Ring-necked Parakeet over Coombefield adding some spice. Sea interest perked up a little, with 3000 auks, 40 Dark-bellied Brent Geese and 18 Wigeon of note off the Bill.
Another Great White Egret was amongst today's overhead movers at the Bill © Jodie Henderson:
Light N wind and clear dawn saw migrant influx at PBO. @portlandbirdobs.bsky.social 245 birds of 17 species ringed. Warblers, CC 98, Blckap 76 plus 1 of Sedge, Grasshopr, Lesser W, Whitethroat,2 WW. Dunnock 8, Robin 6, Stonechat & Great T 4. Pied, Grey Wagtail plus first Song Thrush of the Autumn.
— Peter J Morgan (@pbo61.bsky.social) October 4, 2026 at 7:48 PM
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A selection of moths today from @portlandbirdobs.bsky.social - the rare Maize Wainscot, 1 of 2 Ni Moths seen and a fine purple Purple Marbled, all of which were trapped at the observatory:
— alanlewiswildlife.bsky.social (@alanlewiswildlife.bsky.social) October 4, 2026 at 10:43 PM
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Highlights from trapping overnight 3-4/10/26 at Freshwater Bay, @portlandbirdobs.bsky.social included a pristine Brindled Ochre (now very scarce in Dorset), 4 Golden Twinspot and a worn Silver-spotted Veneer (Euchromius ocellea); also here 15+ Palpita vitrealis, 1 Bordered Straw, 3 Vestal
— alanlewiswildlife.bsky.social (@alanlewiswildlife.bsky.social) October 4, 2026 at 10:51 PM
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3rd October
Something of a really frustrating "one that got away" this morning. This Yellow Wagtail appeared to be tagging a flock of Skylark, giving quite an odd, buzzy type call, followed by more descending flava'ish calls. Immediate thought was thunbergi but sadly without better views it wasn't clinched.
— Joe Stockwell (@joestockwell.bsky.social) October 3, 2026 at 4:13 PM
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Light SSW with some overcast at PBO @portlandbirdobs.bsky.social did the trick today with 190 birds of 19 species ringed. MeadowPip 81, Bcap 30 & CC 26 predominant. 10 LTTit unusual.Good variety with Skylark, Whinchat& Firecrest. Lesser White (sib?) ReedBunt,Dunnock & Greywag completes Autumn fare.
— Peter J Morgan (@pbo61.bsky.social) October 3, 2026 at 8:20 PM
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Couldn't manage three nights running for Maize Wainscot but overall improved migrant numbers/variety at the Obs last night. Porter's Rustic the highlight + 2 Convolvulus Hawks, Ni Moth & Golden Twin-spot.
— Portland Bird Observatory (@portlandbirdobs.bsky.social) October 3, 2026 at 1:23 PM
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2nd October
Stiffiish SW going more S overnight, with ..again a warm, sunny day did little for new birds at PBO. @portlandbirdobs.bsky.social . A tardy total of 13 birds from CEF, with 5 from the garden! in 9 hrs! Robin4, MeadpIp 6, Blakcp2, CC 3, & Swallows 3. Retrap Robins order of the day and Grey Wagtail.
— Peter J Morgan (@pbo61.bsky.social) October 2, 2026 at 8:44 PM
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The second Maize Wainscot in two nights from the Obs moth-traps this morning.
— Portland Bird Observatory (@portlandbirdobs.bsky.social) October 2, 2026 at 9:41 AM
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