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22.09.2024  This great image of a Gannet with black eyes was taken locally by John Ovenden. The eye colour is an indication that this bird is a survivor of Avian Flu    ( see the article from the RSPB, at the bottom of this report, for more information )  JO


A cloudy day following overnight showers, winds were light from the South


20 Little Egrets flew East over Pontac Co-op this morning with a Spoonbill for company, heading for Le Hocq.


Today's visible migrants at Noirmont included a late Swift, a Sand Martin, 523 Swallows, 8 House Martins, 141 Meadow Pipits, 3 alba Wagtails and a Grey Wagtail. On the ground, or dropping in through the morning, were a Song Thrush, a Wheatear, 3 Stonechats, 6 Whitethroats, 10 Chiffchaffs, 2 Blackcaps, 4 Dartford Warblers, a Spotted Flycatcher, 10 Robins, a Marsh Harrier, a Peregrine, 2 Ravens and 2 Choughs. Passing offshore were a Mediterranean Gull, 4 Lesser Black-backed Gulls, a Sandwich Tern, a Grey Heron and 10 Bottle-nosed Dolphins.


On the Scrape this morning were 13 Teal, 4 Shovelers. 3 Snipe, a Redshank, a Marsh Harrier and a Cetti's Warbler.


At Petit Port were 62 Mediterranean Gulls, 5 Lesser Black-backed Gulls, 65 Great Black-backed Gulls, a Whimbrel and 22 Curlews.


3 Song Thrushes flew over Vallee des Vaux at height this morning where a Firecrest and 5 Chiffchaffs were also seen.


Evening update: In St Ouen's Bay were 17 Ringed Plovers, a Sanderling, 158 Great Black-backed Gulls and 9 Lesser Black-backed Gulls and at Corbiere were 3 Wheatears, 25 Great Black-backed Gulls, 2 Ravens and 2 Choughs.

At the Farmer's Cricket Ground in St Martin were 3 Yellow Wagtails, 5 alba Wagtails, a Grey Wagtail and 2 Swallows.

6 Cattle Egrets were at Grouville Marsh, 15 Redshanks were at St Aubin and 57 Brent Geese were at Bel Royal.

Black eyes in seabirds indicates bird flu survival

Scientists have discovered evidence that Northern Gannets can recover from bird flu and that unusual black iris coloration is linked to a previous HPAIV infection

Ness Amaral-Rogers

Posted 

Thu 4th May 2023

5 min read

  • The study also assessed the impact of HPAI on adult gannet survival at the largest gannet colony in the world - the Bass Rock, UK
  • The team found that at Bass Rock, adult survival between 2021 and 2022 was 42% lower than the average over the previous 10 years.

A new study has discovered evidence that Northern Gannets can recover from Highly Pathogenic Avian Influenza (HPAI) H5N1, with black irises, an indicator of a previous infection.


Scientists from multiple organisations investigated outbreak timings at colonies across their North Atlantic range. At their largest colony, Bass Rock, UK, a detailed study was conducted to estimate the impact of the virus on colony size, breeding success, adult survival, and whether Gannets were potentially able to recover from an infection.

Black irises – instead of the usual pale blue – were first seen in Gannets breeding on the Bass Rock in June 2022 with colour varying from completely black to mottled. The team took blood samples from 18 apparently healthy adult Gannets with both normal and black irises, which were tested for bird flu antibodies by APHA to determine whether the birds had been previously infected. Eight tested positive, of which seven had black irises.

Dr Jude Lane, RSPB Conservation Scientist and lead author of the study: “This has been a fascinating development and the discovery may prove a useful non-invasive diagnostic tool. The next steps are to understand its efficacy, if it applies to any other species and whether there are any detrimental impacts to the birds’ vision. Ophthalmology exams will also be needed to determine what is causing the black colouration.”

High Pathogenicity Avian Influenza Virus (HPAIV) has negatively impacted wild and domestic bird populations globally for decades. However, the current strain (HPAIV H5N1) has seen shifts in both the timings of outbreaks and species affected - including seabirds. Northern Gannets appeared especially severely impacted, but there was limited understanding of how their populations were affected.

High numbers of dead gannets were seen in Iceland during April last year followed by outbreaks in many Scottish colonies, Canada, Germany and Norway. By the end of June, outbreaks had occurred in five Canadian colonies and in the Channel Islands. Outbreaks in 12 UK and Ireland colonies followed in a clockwise pattern with the last infected colonies recorded in September. Unusually high mortality was recorded at all but one of the 41 monitored colonies (75 % of the 53 North Atlantic colonies), and sampling data was available for 58% of these, all with dead birds testing positive.

To better understand the impacts of HPAI, the team further investigated Bass Rock in the UK. Bass Rock is the world’s largest Gannet colony, home to over 150,000 birds at their peak. The team calculated that adult survival between 2021 and 2022 was 42% lower than the preceding 10-year average. The full extent of how many birds died during that period won’t be confirmed until the birds come back this breeding season.

The study was a collaboration between the RSPB, the University of Glasgow, the University of Edinburgh, Heriot Watt University and the Animal Plant Health Agency in partnership with the Scottish Seabird Centre.

Susan Davies, CEO of the Scottish Seabird Centre said: “Like many northern gannet colonies across the North Atlantic the Bass Rock was severely impacted in 2022 by highly pathogenic avian influenza. Due to the long running research effort on the Bass Rock, it was possible to gain important insights into the changes taking place in the colony with a strong link emerging between virus infection and the changing iris colour in these striking seabirds and the high level of nest failure within the study area.”

Seabirds are amongst the most threatened group of birds, out of the 25 species breeding here in the UK, 24 are Red or Amber on the UK list of Birds of Conservation Concern. The 2022 bird flu outbreak has provided another significant stressor to those already faced by our rapidly declining seabird populations. Quantifying and perhaps even mitigating its impact is therefore crucial if we hope to restore our seabird populations.


by Michael Dryden 15 December 2025
A handsome male Stonechat on the seawall near Kempt Tower yesterday. Image: MD A dry but mainly overcast day in a fresh south-southeast wind. A quiet day for birds, but still with some points of interest. In St Ouen's Bay, a Bittern was seen again on the Scrape while on St Ouen's Pond were 25 Shoveler , a Little Grebe , a Snipe , a Water Pipit and 2 Stonechats . In the backfields behind the Pond were 28 dark-bellied Brent Geese and along the seawall near Kempt Tower were the Snow Bunting and 2 Stonechats . Off of Corbiere first thing were 37 Razorbills , a Guillemot , 16 Gannets , 32 Shag , 5 Cormorants , 48 Great Black-backed Gulls , a Kittiwake , a Mediterranean Gull , 3 Black-headed Gulls , a Grey Heron and a Purple Sandpiper , with a Peregrine and a Raven also seen. Later morning, seen from Grosnez were 63 Razorbills , 85 Fulmars which included a raft of 68 birds, 33 Gannets , 52 Kittiwakes , 6 Great Black-backed Gulls , also a single Harbour Porpoise . At Petit Port late morning were 28 Curlews , 20 Sanderlings , 86 Oystercatchers , 2 Cormorants , 4 Ravens and 8 Long-tailed Tits . 12 Cattle Egrets were at Cowley Farm. In the St Helier Marina this evening was a roost of 250 alba Wagtails , also a Kingfisher . One report from yesterday was a Black Redstart near the Blue Note in St Helier which disappeared when the Christmas band struck up!
by Michael Dryden 14 December 2025
14.12.2025 A Skylark , preening near Kempt Tower in today's sunshine. Image: MD A fair to fine day in a fresh southerly wind, but cool at 12c. At the Wetland centre in St Ouen's Bay were 22 Shoveler, 14 Teal, a Water Rail. a Water Pipit, 4 Stonechats and a Brent Goose, which along the seawall between Sands and Kempt Tower, were 41 Ringed Plovers , the Snow Bunting , 3 Skylarks , 3 Stonechats and 4 Pied Wagtails . Another busy morning at Corbiere saw a Black-throated Diver , 6 Red-throated Divers , a late Manx Shearwater , 1,330 Razorbills , 9 Guillemots , 23 Gannets , a Shelduck , a Brent Goose , 8 Cormorants , 150+ Kittiwakes , 13 Mediterranean Gulls , 2 Black-headed Gulls , 2 Lesser Black-backed Gulls , 61 Great Black-backed Gulls , 3 Common Gulls and a Peregrine , in three hours. At St Aubin were 16 pale-bellied Brent Geese . At La Rocque were 469 Dunlin, 378 Sanderlings , 65 Ringed Plovers, 109 Grey Plovers , 49 Redshanks , 2 Greenshanks , 37 Curlews , 88 Turnstones , 340 Oystercatchers , a Shelduck , 285 Brent Geese , 10 Red-breasted Mergansers , 2 Great Crested Grebes , a Slavonian Grebe and a Mediterranean Gull and behind Seymour were 7 Little Egrets. At La Sente were 9 Grey Herons , 5 Cattle Egrets and 7 Little Egrets . A further 2 Little Egrets were at Fauvic Marsh. At Haie Fleurie in St Martin were 16 Cattle Egrets and at nearby Fliquet was a pale-phase Buzzard . 2 Peregrines were at La Crete. In St Catherine's Woods were a Grey Heron , a Grey Wagtail , 3 Goldcrests and a Sparrowhawk . A Dartford Warbler was seen at Beauport and in Les Creux Country Park were 13 Long-tailed Tits . In Beaumont Marsh were 450 Brent Geese , a Grey Wagtail and a Raven . Back to yesterday evening and Redwings were calling over Gorey.
by Michael Dryden 13 December 2025
13.12.2025 Long-tailed Tit at Kempt Tower. Image: MD A decent day for a change, with mainly clear skies in a light east-southeast wind and a temperature of 12c A nice surprise today was the reappearance of the Snow Bunting in St Ouen's Bay, still near to Kempt Tower. Also in the area were 3 Stonechats . On St Ouen's Pond was a Bittern and a Water Pipit . A decent amount of movement offshore at Corbiere, in the light winds, included a Great Skua , a late Balearic Shearwater, 16 Common Scoters , 5 Fulmars , 19 Gannets , 280 Razorbills , 10 Guillemots , 28 Cormorants , 2 Brent Geese , 147 Kittiwakes , 54 Mediterranan Gulls , 5 Common Gulls , 25 Black-headed Gulls , a Lesser Black-backed Gull , 26 Great Black-backed Gulls , and 47 Curlews . a Black Redstart was also present and a Peregrine was hunting the area. At Petit Port were 28 Turnstones , 4 Brent Geese and 4 Little Egrets . Another Peregrine was seen at grosnez. Around La Rocque were a Slavonian Grebe , 2 Great Crested Grebes , 275 Sanderlings , c 300 Dunlin , 73 Turnstones , 37 Grey Plovers , 41 Redshanks , 87 Brent Geese , 8 Red-breasted Mergansers , 13 Grey Herons , 11 Little Egrets and 120 Oystercatchers . At Seymour were 280 Brent Geese , 17 Ringed Plovers and 7 Pied Wagtails . 420 Brent Geese were in Beaumont Marsh and 2 Cattle Egrets were on Mont a l'Abbe. At the Orchard near Trinity Church were 13 Fieldfares , 23 Redwings , 3 Song Thrushes , 8 Blackcaps , 3 Firecrests , 2 Goldcrests , 2 Siskins , 2 Woodcocks , a Sparrowhawk and 6 Raven which flew overhead. 320 Herring Gulls were in a field on Rue de Brabant in Trinity and a Chough was seen on a roof at Les Hamonnets in St John.
by Michael Dryden 12 December 2025
12.12.2025 Thanks go to Romano for this great image of a Pied Wagtail which was at Le Pulec this week, wearing a colour ring from the Isle of Man . Early rain soon cleared to a cloudy day with a fresh westerly wind. A Bittern was seen again at St Ouen's Pond this morning, where 3 Snipe and a pair of Stonechat were also present. 45 Brent Geese were in the fields behind the Pond too. This morning's counts from Corbiere included 615 Razorbills , 63 Guillemots , a Red-throated Diver , 3 Fulmars , 52 Gannets , 48 Kittiwakes , 9 Mediterranean Gulls , 3 Black-headed Gulls and 76 Great Black-backed Gulls , with a Grey Seal also there. At St Aubin were 33 Redshanks , 18 Turnstones and 2 pale-bellied Brent Geese while in Beaumont Marsh were a Siberian Chiffchaff , 40 Chiffchaffs , 12 Goldcrests , 8 Firecrests , 4 Blackcaps , 2 Siskins , 2 Redwings , a singing Song Thrush , a Grey Heron and 8 Snipe . Seen between Seymour and La Rocque were 17 Redshanks , 2 Greenshanks , 8 Ringed Plovers, 130 Grey Plovers , 11 Grey Herons , 7 Little Egrets , 80 Sanderlings , 45 Turnstones and 250 dark-bellied Brent Geese . 13 Cattle Egrets were at La Sente and in French Harbour were 3 Brent Geese . Around Beauport and Les Creux were 7 Redwings , a Firecrest , 2 Goldcrests , a Dartford Warbler , a Great Spotted Woodpecker and 6 Long - tailed Tits .
by Michael Dryden 11 December 2025
11.12.2025 A first-winter Common Gull at Corbiere Image: MD There was feel of Winter about today's weather, with overcast skies and some hill fog, feeling cooler in a fresh south-southest wind Auks were seen in greater numbers than of late at Corbiere this morning, with 1,048 Razorbills and 30 Guillemots counted in three hours. Also passing Corbiere were a Great Northern Diver , a Red-throated Diver , a Fulmar , 45 Gannets , 4 Brent Geese , 81 Shags , 9 Cormorants , 171 Great Black-backed Gulls , 3 Lesser Black-backed Gulls , 61 Kittiwakes , 3 Common Gulls , 33 Mediterranean Gulls , 9 Black-headed Gulls and 150 Herring Gulls . At La Rocque were 2 Great Northern Divers , a Great Crested Grebe , 366 Dunlin , 260 Sanderlings , 159 Grey Plovers , 22 Ringed Plovers , a Bar-tailed Godwit , 44 Redshanks , 84 Turnstones , a Red-breasted Merganser , a Sandwich Tern, 2 Mediterranean Gulls and a Black Redstart . 32 Cattle Egrets were by Holme Grown at Fauvic, 12 Grey Herons were at La Sente and on Grouville Common were 45 Redwings , 4 Chiffchaffs , 2 Goldcrests and 3 Stonechats . A further 16 Cattle Egrets were at Maufant while at Le Catillon were 36 Common Gulls and one Mediterranean Gull . In St Ouen's Bay, 50 Brent Geese , 53 Shovelers , a Wigeon , 2 Teal , a Little Grebe , 16 Lapwings , a Water Pipit and a Chiffchaff were seen from the Wetland Centre and 2 Bitterns were reported from the Scrape. At Le Pulec were 11 Little Egrets , 250 Oystercatchers , 9 Curlews , 7 Great Black-backed Gulls , 40 Cormorants and 14 Shags . In Beaumont Marsh were 320 Brent Geese, a Little Egret , a Grey Heron , 3 Snipe , a Grey Wagtail and 6 Meadow Pipits . Elsewhere, 22 Fieldfares , 10 Redwings , 2 Woodcock , 2 Goldcrests and a Chiffchaff were at an orchard near to Trinity Church, a Bullfinch visited a garden at Rue de Huquet in St Martin and in Rue des Jutize at Grouville were 250 Chaffinches , 14 Reed Buntings and 60 Redwings . In Vallee des Vaux were 14 Redwings , 2 Goldcrests , a singing Song Thrush and 2 Woodcock . A late report for St Ouen's Pond yesterday evening with a roost of 24 Marsh Harriers there, also 15 Reed Buntings , 6 Chiffchaffs , 10 Cetti's Warblers , 3 Stonechats , a Firecrest , a Snipe and 6 Water Rails seen and heard there. Below : Thanks go to George Louis for this short video of Brent Geese arriving into Goose Green ( Beaumont Marsh) today.
by Michael Dryden 10 December 2025
10.12.2025 With no reports of the Snow Bunting near Kempt Tower for two days, possibly a last chance to show it here ( but hopefully not). Image: MD A fair day with medium to high cloud, mild again at 14c in a moderate southwest wind. Another steady day for birds passing Corbiere through the morning, resulted in counts of 6 Brent Geese, 125 Razorbills , a Guillemot , 85 Gannets , a Fulmar , 49 Shag , 10 Cormorants , 107 Kittiwakes , 50 Mediterranean Gulls , 38 Black-headed Gulls , a Common Gull, 88 Great Black-backed Gulls and 187 Herring Gulls . Passing La Coupe this morning were a Great Skua , 15 Razorbills , 3 Kittiwakes and a Mediterranean Gull. Seen in Beaumont Marsh today were 67 Brent Geese, 5 Little Egrets, 3 Snipe, a Grey Wagtail, an alba Wagtail , 2 Siskins , 25 Chiffchaffs , 2 Firecrests , 2 Goldcrests , 6 Long-tailed Tits , 2 Redwings , 3 Blackcaps , a Raven and an overflying Mediterranean Gull . At the Gunsite in St Aubin's Bay were 245 Brent Geese and a Pied Wagtail and at St Aubin were 33 Redshanks , a Turnstone and 2 pale-bellied Brent Geese . In Waterworks Valley, a Little Grebe and a Coot were on Millbrook reservoir while on Dannemarche reservoir were 2 Tufted Duck , a Grey Heron , 5 Coot , a Grey Wagtail , 4 Long-tailed Tits , 4 Goldcrests , a Short-toed Treecreeper and a Buzzard . 5 Pied Wagtails were at Noirmont. On the North Coast, at Crabbe, were a Stonechat , a Brambling , 120 Chaffinches , a Skylark , 15 Goldfinches , 4 Linnets , 20 Reed Buntings , 3 Song Thrushes , 5 Meadow Pipits, a Dartford Warbler , 3 Choughs , a Kestrel , a Sparrowhawk and a Marsh Harrier . At Les Landes were a Peregrine , a Kestrel and a Stonechat and in Rue des Chasses, St John, was a flock of 50 Stock Doves . 2 Pied Wagtails were at Longbeach in Grouville Bay. In St Ouen's Bay, a Water Pipit was at the Wetland Centre, 10 Pochard and 6 Little Grebes were in the Sandpits, a Snipe , 5 Chiffchaffs , a Cetti's Warbler , 2 Long-tailed Tits and a Marsh Harrier were at Kempt Tower pools, while at Le Pulec were 9 Little Egrets and c 200 Oystercatchers .
by Michael Dryden 9 December 2025
09.12.2025 Good numbers of Great Black-backed Gulls were on the move off the West Coast this morning, including this pristine adult, pictured passing Corbiere. Image : MD A morning of high cloud, with a storm moving North, well to the west of the Island bringing increasingly strong Southerly winds and some rain later Good numbers passing Corbiere, southbound, included 2 Great Northern Divers , 9 Common Scoters , 5 Brent Geese , 19 Razorbills , 2 Guillemots , 40 Gannets , 9 Cormorants , 71 Shags , 340 Great Black-backed Gulls , a Yellow-legged Gull , 228 Herring Gulls , 15 Mediterranean Gulls , 5 Black-headed Gulls , 2 Common Gulls , a single Lesser Black-backed Gull and 24 Curlews heading off to roost on the South Coast. A visit to Handois Reservoir found 32 Tufted Duck , 138 Mallard , 16 Cormorants , 6 Grey Herons , 8 Goldcrests , a Firecrest , a Chiffchaff , 2 Grey Wagtails , 45 Redwings , 4 Song Thrushes , and 2 Ravens . At Sion were 2 Fieldfares and 11 Redwings and in Vallee des Vaux were 8 Redwings , 2 Goldcrests , a Chiffchaff , 2 singing Song Thrushes and 3 Woodcock which flew over at Dusk. In Beaumont Marsh were 120 Brent Geese , 60 Black-headed Gulls , a Grey Heron, 3 Little Egrets , 3 Snipe and a Grey Wagtail . 3 Grey Wagtails are regular in Rue des Samares at the moment attending a water filled garage roof. At La Sente were 33 Cattle Egrets and 6 Little Egrets . On the Airport football pitch were 47 Mediterranean Gulls , 9 Black-headed Gulls and 8 Pied Wagtails , and at the Rugby pitch were 20 Redwings . A Barn Owl was seen on Mont Matthieu pre-Dawn this morning too. Yesterday evening, good numbers of Redwings were heard in flight over Noirmont, Beauport and Woodlands Farm and at La Haule were 27 Sanderlings and 6 Dunlin . Below : An immature Great Black-backed Gull in flight at Corbiere today. Image MD
by Michael Dryden 8 December 2025
08.12.2025 A few Great Northern Divers were seen through today's poor conditions, including this bird, passing Corbiere Lighthouse early morning. Image: MD It was a poor day weatherwise, overcast with rain, but mild at least at 13c in a fresh south-south-west wind. Seen passing La Coupe were 4 Common Scoters , 6 Great Northern Divers , a Gannet , a Common Gull and 2 Razorbills , with a regular wintering Polish-flagged Curlew ( yellow R52) back in situ there. Seen from Seymour, in Grouville Bay, were 3 Great Crested Grebes, a Black-necked Grebe , another Great Northern Diver and 7 Mediterranean Gulls . At La Sente were 37 Cattle Egrets, 18 Little Egrets and 14 Grey Herons and on Rue a Don were 23 Cattle Egrets . A short seawatch in the rain at Corbiere saw a Great Northern Diver, 30 Gannets , 6 Cormorants , 24 Shags , 3 Curlews and 23 roosting Purple Sandpipers . 6 Brent Geese were in Petit Port Bay. Near Sands, in St Ouen's Bay, were 41 Ringed Plovers , and 2 Pied Wagtails and by Kempt Tower, above the seawall, were the Snow Bunting and a Pied Wagtail, with 9 Black-headed Gulls flying over. On St Ouen's Pond were 36 Shoveler , 2 Little Grebes , 18 Lapwings , a Snipe , 2 Brent Geese and 8 Pied Wagtails , while on the Scrape were a Grey Heron and 3 Chiffchaffs , with 9 Brent Geese flying over too. In Beaumont Marsh were 220 Brent Geese , 6 Snipe , a Curlew and 100 Black-headed Gulls and in St Brelade's Bay were 3 Brent Geese and a Grey Wagtail .
by Romano da Costa 7 December 2025
07.12.2025 Today's miserable weather brought inland a good number of Mediterranean Gulls RdC Feeding on the Airport football pitch this morning were 96 Mediterranean Gull , a Common Gull and 40 Black-headed Gull . Down in St Ouen's Bay, the Snow Bunting was still feeding along the sea wall, 16 Lapwing were at the Pond and on the beach were a Caspian Gull , 306 Great Black-backed Gull , 2 Lesser Black-backed Gull , 24 Herring Gull , 2 Mediterranean Gull and a Sandwich Tern . At Le Pulec were 20 Pied Wagtail including one colour-ringed on the Isle of Man, 45 Rock Pipit , 12 Meadow Pipit , 2 Stonechat and 4 Little Egret while at Petit Port were a Yellow-legged Gull , a Lesser Black-backed Gull , 8 Great Black-backed Gull , 4 Brent Geese , 25 Curlew and 2 flyby Common Scoter . Around La Sente were 47 Cattle Egret , 4 Little Egret , 11 Grey Heron , 30 Brent Geese , 14 Redwing and a Stonechat . Seen at Beaumont Marsh were 100 Brent Geese , 80 Black-headed Gull , a Curlew , 5 Snipe , a Grey Heron , 5 Meadow Pipit and a White Wagtail while in Vallee des Vaux were 14 Redwing and a Woodcock .
by Romano da Costa 6 December 2025
06.12.2025 This Great Black-backed Gull , ringed at Dieppe in France, has been regularly visiting us since late July and was seen again today at Petit Port RdC Passing La Coupe this morning were an Arctic Skua , 11 Great Northern Diver , 2 Red-throated Diver , 6 Common Scoter , 9 Brent Geese , 6 Kittiwake , 8 Mediterranean Gull , 3 Common Gull , 15 Gannet and 27 Auks . Roosting at Petit Port were 60 Great Black-backed Gull , 9 Lesser Black-backed Gull , 26 Curlew , 8 Brent Geese , a Grey Heron and 3 Cormorant . At Beaumont Marsh were 370 Brent Geese , a Curlew , 3 Snipe , a Grey Wagtail and 2 Little Egret while around La Sente were 22 Cattle Egret , a Little Egret and a Grey Heron . Seen at St Ouen's Pond were 39 Shoveler , 21 Teal and 2 Little Grebe . Yesterday evening a Golden Plover , 8 Snipe , a Fieldfare and a Skylark were at Le Roncier.
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