21st August
20th August
A far less productive day than hoped/expected with the quiet conditions doing almost nothing passerine-wise. Wheatear was an honourable exception reaching more than 70 at the Bill, but Sedge Warbler and Willow Warbler only just struggled into double figures there and Yellow Wagtail, Tree Pipit, Blackcap and Pied Flycatcher managed barely more than singles, Waders fared slightly better, including 311 Ringed Plovers - the highest total so far this autumn - at Ferrybridge and a lone Greenshank over the Bill. A feeding flock of 100 Gannets gathered off the Bill but 13 Balearic Shearwaters (also the autumn peak to date), 3 Little Egrets, 2 Mute Swans and an Arctic Skua were the pick of what little passage there was offshore.
19th August
18th August
17th August
Portland Bird Obs is the venue for our Optics day this coming Sunday 20th August @PortlandBirdObs 01225 891352 for further info @DWTWeyPort @DorsetBirdClub @opticronuk @SwarovskiOptik @ZEISSBirding @VortexOpticsUK @hawkeoptics @UKNikon hoping for some migrants too. pic.twitter.com/tknxWa1tTH
— In Focus Cotswold (@infocus_Swest) August 16, 2023
16th August
15th August
Much improved numbers and variety on a lovely morning at the Bill; Redstart the first mist-netted so far this autumn pic.twitter.com/SA8PVBJUqK
— Portland Bird Observatory (@PortlandBirdObs) August 15, 2023
Duo of Convolvulus Hawks off the tops of the Obs moth-traps before we've even checked the trap contents pic.twitter.com/qGtniFcnjZ
— Portland Bird Observatory (@PortlandBirdObs) August 15, 2023
14th August
13th August
12th August
11th August
Necklace Veneer Euchromius ocellea an unexpected migrant from the Obs moth-traps overnight - usually a mid-winter rarity here; singles of Olive-tree Pearl vitrealis & Small Mottled Willow the best of the rest pic.twitter.com/TPLuRIANxS
— Portland Bird Observatory (@PortlandBirdObs) August 11, 2023
10th August
Quite why there wasn't a worthwhile arrival of common migrants - let alone a Melodious Warbler or whatever else could have shown up - out of wafting southeasterlies and increasing warmth defied obvious explanation today (...as did the utter lack of new migrant moths in the moth-traps). It wasn't completely dead, with 30 Wheatears, 25 Willow Warblers, 5 Sedge Warblers and singles of Redshank, Redstart, Whinchat (the latter two both firsts of the autumn), Reed Warbler and Garden Warbler grounded at the Bill, a Pied Flycatcher at Reap Lane (another first for the season) and 142 Ringed Plovers, 62 Dunlin and 4 Sanderlings at Ferrybridge, whilst overhead an aggregation of at times more than 200 Swifts over the Bill was impressive. Offshore, the Kittiwake movement continued albeit at a slightly reduced rate, with 234 through off the Bill; 6 Arctic Skuas and a small passage of departing Lesser Black-backed Gulls were also of interest there.
Also today we received details from Tara Watson, the Chesil Little Tern Recovery Project Officer, of the outcome of not only the Ferrybridge Little Tern colony but also the other birds of interest breeding in and around the colony; these are as follows:
Little Tern
Total nests 60
Nests hatched 34
Nests
failed 24
Unknown 2
Total chick count (hatched/presumed
hatched) 61-78
Minimum fledgling count 40-45
Oystercatcher
Total nests 3
Nests hatched 2
Nests failed 1
Total chick count (known hatched) 6
Fledgling count 2
Ringed Plover
Total nests 4
Nests hatched 3
Failed 2
Total chick count (hatched/presumed
hatched) 5-9
Minimum fledgling count 3-5
Common Tern
Total nests 1 (one egg, failed after abandonment by parents)
9th August
8th August
A return to last week's weather - dreary, increasingly windy and occasionally damp - did nothing on the passerine front at the Bill, where 25 Wheatears, single figure totals of Sedge and Willow Warblers, 2 Garden Warblers and singles of Grey Wagtail and Reed Warbler made up the tally of arrivals. The conditions did favour waders, with 160 Ringed Plovers and 86 Dunlin respectable totals from Ferrybridge. Four Storm Petrels through off the Bill were the best from the sea, with 27 Common Scoter, 16 Shoveler, 12 Manx Shearwaters, 5 Arctic Skuas and 3 Balearic Shearwaters also through there.
Last night's moth-trapping did produce a couple of faintly encouraging signs of migratory activity perhaps picking up (see below). Sadly for the stalwarts manning the traps during our absence last week migrant activity was extremely subdued but one nice find for them was this freakishly dark aberration of Scalloped Oak; we have recorded one or two similar example in the past so this peculiar form isn't entirely unknown at Portland but it's certainly super smart © Martin Cade:
Hopefully a sign of things to come as this week goes on: the year's first Convolvulus Hawkmoth + a Cosmopolitan from the Obs moth-traps overnight pic.twitter.com/WIB8CUEkLz
— Portland Bird Observatory (@PortlandBirdObs) August 8, 2023
Has anyone been catching Clifden Nonpareils yet this autumn? One of our moth-trapped specimens last autumn was a female that produced copious amounts of eggs; after these hatched we reared a few indoors (it was remarkably easy) and the moths have just started emerging pic.twitter.com/vSpskansSQ
— Portland Bird Observatory (@PortlandBirdObs) August 8, 2023
7th August
6th August
A week away on holiday hasn't been conducive to keeping up with daily updates but normal service should resume now we're back in circulation. Whilst the weather during our absence had been propitious for sitting on Cornish headlands it hadn't been much cop for passerine migration so today's quieter conditions were both welcome and rewarding, with the autumn's best grounded arrival to date. With no reports from other island passerine spots - is anyone watching them? - it was left to a few stalwarts to get amongst a good little drop of standard early season fare at the Bill that included 70 Wheatears, 60 Willow Warblers, 30 Sedge Warblers, 8 Garden Warblers and a Reed Warbler, with 60 Sand Martins, 50 Swallows, 3 Ringed Plovers and 3 Tree Pipits on the move overhead. Ferrybridge was also well-watched and returned totals that included 330 Mediterranean Gulls, 116 Ringed Plovers, 54 Dunlin, 26 Sandwich Terns, 5 Sanderling, a Whimbrel and a Redshank. A steady movement of 36 Sandwich Terns accounted for the bulk of the numbers off the Bill, where 12 Manx Shearwaters, 6 Dunlin, 6 commic terns, 2 Arctic Skuas, a Balearic Shearwater and a Common Scoter were amongst the miscellany also on the move.
A couple of Whimbrel and a Knot were amongst the waders forced down at Ferrybridge by yesterday's wind and rain © Pete Saunders:
5th August
Cory's Shearwater off Chesil Cove 9am this mrng per @dunccrip - was settled then flew off south towards the Bill
— Portland Bird Observatory (@PortlandBirdObs) August 5, 2023
had an hour+ late morning at chesil cove, had a dark phase artic skua just before charlie turned up then he spotted a pale one just after he turned up, apart from that the normal suspects and a couple of GCGrebe's out in the bay pic.twitter.com/QrcTCH7rDH
— andy (@andy33082645) August 5, 2023
Portland bill am. 1 stormy 6 arctic skua 2 manx 1 balearic 20 scoter fulmar kitts 100 Gannet.
— freddy alway (@freddyalway) August 5, 2023
Ferrybridge this morning 12 Sandwich Tern, Whimbrel, 8 Redshank, 11 Sanderling, Knot, 2 Shelduck (“inclement” conditions)
— Debby Saunders (@debbyseamist) August 5, 2023
4th August
Another small arrival of migrants overnight saw a minimum of 10 Willow Warblers in the obs garden as well as another 14 between the Crown Estate field and Culverwell in addition to 2 Sedge Warblers, 12 Common Whitethroat and 6 Wheatear. Amongst the trickle of hirundines was a single Yellow Wagtail as well as the first 4 Tree Pipits of the autumn. At sea, 38 Manx Shearwater, 6 Balearic Shearwater, 1 Arctic Skua, around 30 Common Scoter, 1 Black-tailed Godwit and 42 Sandwich terns were logged. At Ferrybridge there was 1 Black-tailed Godwit, 3 Whimbrel, 7 Sanderling, 9 Sandwich Terns, 3 Shelduck, 30 Ringed Plover, 1 Redshank, 2 Curlew and 70 Dunlin.
3rd August
With the wind switching round to the North-west, there was an obvious arrival of migrants overnight, with a minimum of 10 Willow Warblers, 1 Spotted Flycatcher, 1 Common Whitethroat, 3 Sedge Warblers and 1 Blackcap hopping around the garden first thing. At sea, a total of 4 Balearic Shearwater, 9 Manx Shearwater, 2 Arctic Skua, 31 Common Scoter, 4 Ringed Plover and 2 Common Redshank were logged as well as a noticeable uptick of 25 Sandwich Terns. The same was noted at Ferrybridge where 148 Sandwich Terns were seen heading west, as well as 15 Sanderling, 54 Dunlin, 35 Ringed Plover, 6 Common Redshank, 9 Turnstones and a single Whimbrel.
The overnight conditions also proved favourable for the migrant moths, with 33 Silver Y, 16 Rusty-dot Pearl, 8 Turnip, 4 Dark Sword-grass and a single Diamondback.
2nd August
With the South-Westerly winds kicking back up a notch, seawatching was always going to be the order of the day. Inbetween some rather heavy showers, a total of 5 European Storm Petrel, 2 Arctic Skua, 1 Balearic Shearwater, 23 Manx Shearwater, 2 Sanderling, 4 Ringed Plover, 33 Common Scoter and 2 Yellow-legged Gulls were logged from the Bill as well as 1 European Storm Petrel and 2 Yellow-legged Gulls reported from Chesil Cove. Elsewhere at Ferrybridge a total of 11 Turnstones, 1 Wheatear, 1 Whimbrel, 1 Curlew and 1 Common Sandpiper were logged.
1st August
Portland Bill
Wheatear 5
European Storm Petrel 1
Balearic Shearwater 2
Arctic Skua 1
Common Scoter 8
31st July
The end of July played out in a rather similar fashion to the rest of the month with strong Westerly winds and frequent showers. Apart from a couple of Wheatears new in at the Bill, interest was again focused out at sea, with 1 European Storm Petrel, 1 Arctic Skua, 1 Balearic Shearwater and a couple of Manx Shearwater passing by. Variety at Ferrybridge continued, with 3 Common Sandpipers, 2 Knot, 13 Turnstone, 40 Dunlin, 10 Sanderling, 13 Ringed Plover, 3 Sandwich Terns and singles of Whimbrel and Common Tern.
Following on from the record catch of Sand Martins in the last fortnight, we have heard back regarding one of the control birds: ringed as a youngster in Perth and Kinross on the 18th July, it took only 7 days to travel 654km on its Southward migration over the Bill! © Martin Cade
30th July
Apologies for the lack of blog post yesterday, but it's never a good sign when the entirety of the weekends sightings can fit onto a single page of the clipboard! Today's ever increasing South-Westerly meant the focus was almost entirely out to sea, with a total of 3 European Storm Petrels, 1 Sooty Shearwater, 1 Balearic Shearwater, 13 Manx Shearwater and 13 Common Scoter seen off the Bill. Elsewhere, a total of 54 Dunlin, 10 Curlew, 12 Sanderling, 1 Black-tailed Godwit, and 6 Turnstones were seen at Ferrybridge.
Today's Black-tailed Godwit from Ferrybridge © Pete Saunders
28th July
27th July
26th July
25th July
24th July
23rd July
Brighter and entirely dry today but always too breezy to make the most of what might have dropped in on the land. The day's oddest arrivals were single Black Redstarts at Blacknor and the Grove, a more routine selection of waders included 27 Dunlin, 15 Sanderling and a Redshank at Ferrybridge, whilst the only rewards from the sea were a handful of Yellow-legged Gulls and a single Arctic Skua through off the Bill.
22nd July
And back to yesterday for news from Bryan Edwards of a new bee for the island. While checking the Golden Samphire on East Cliffs Bryan found plenty of Green-eyed Flower Bees Anthophora bimaculata; Brian further tells us: 'can't believe it was overlooked in the past as it is easily identified and makes a very distinctive high-pitched whine when darting between flowers. It was frequent on east cliffs from near the obelisk along to the huts, foraging from the samphire and seen entering holes in bare ground on the cliff top. It is generally a species of sandy soils and is frequent on Dorset heaths, and more local on the coast, the nearest sites being Durdle Door to the east and Cogden to the west' © Bryan Edwards:
21st July
Portland Bird Obs @PortlandBirdObs is the venue for this Sundays Optics day - 23rd July @DWTWeyPort 01225 891352 for further info @opticronuk @SwarovskiOptik @VortexOpticsUK @ZEISSBirding @hawkeoptics @UKNikon pic.twitter.com/k8hH24ETPR
— In Focus Cotswold (@infocus_Swest) July 21, 2023
Plenty more of the same on a very birdably pleasant sort of day. A Serin at the Bill was the day's highlight, with commoner migrant totals there that included c250 Sand Martins, 64 Swallows, 58 Swifts, 4 House Martins and singles of Grey Heron and Yellow Wagtail leaving to the south, 3 Dunlin, 3 Redshanks and singles of Whimbrel and Turnstone randomly overhead or through over the sea, and 3 Willow Warblers and a Sedge Warbler grounded. The wader tally elsewhere was also varied and included 56 Dunlin, 12 Sanderling, 6 Redshanks and a Whimbrel at Ferrybridge. The sea was also still worth attention, with 22 Common Scoters, 19 Mediterranean Gulls, 7 Yellow-legged Gulls, 3 Balearic Shearwaters, 3 Manx Shearwaters and an Arctic Skua through off the Bill.
The Serin was bombing about overhead all morning but wasn't ever seen to settle © Martin Cade...













































