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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 10 July 2026
10.07.2026 A juvenile Linnet at St Ouen's Pond Scrape. MD The fine weather continues, with clear skies and today, more by way of an Easterly wind. Hot at 30c A busy first two hours of daylight at Corbiere saw 3,172 Balearic Shearwaters flying into St Ouen's Bay, along with 63 Manx Shearwaters , 2 Common Scoters , 5 Guillemots , 3 Fulmars, 33 Gannets, 6 Cormorants , 20 Mediterranean Gulls , 13 Black-headed Gulls , 14 Lesser Black-backed Gulls, 30 Great Black-backed Gulls and 6 Sandwich Terns , also 2 Swifts . At Petit Port this afternoon were 6 Curlews , 2 Mediterranean Gulls and a Little Egret . In Grouville Bay were a Great Crested Grebe , 43 Mediterranean Gulls , 32 Black-headed Gulls and a Greenshank at Seymour Slip. 11 Sandwich Terns were at La Rocque. Later this afternoon, between Seymour and La Rocque were a Curlew , 4 Greenshanks , a Sandwich Tern , 5 Little Egrets and a roost of c40 Mediterranean Gulls . The water level at the Scrape is going down at a steady rate now. On there this morning were a Greenshank , the 2 Lapwings with their chick, 2 Oystercatchers , 2 fledged juvenile Marsh Harriers , a Grey Heron and 3 Teal . A Swift was flying overhead along with a few Swallows . In St Ouen's By this evening were a juvenile Yellow-legged Gull, 48 Lesser Black-backed Gulls , 22 Great Black-backed Gulls and a Mediterranean Gull . 6 Swifts and 3 Swallows were feeding over Noirmont later morning and a Dartford Warbler was seen near the gate on the cliffpath at Sorel.
by Michael Dryden 9 July 2026
09.07.2026 Peregrine at Le Pulec this morning. MD The fine and hot weather continued today, reaching 31c in a moderate easterly wind. The seabird bonanza continued off of Le Pulec, albeit a little further offshore than yesterday. An estimated 3000 Balearic Shearwaters were joined by 1000+ Herring Gulls and small numbers of Manx Shearwaters, 3 Common Scoters, 2 Sandwich Terns, Mediterranean Gulls , Black-headed Gulls , Lesser Black-backed Gulls , Guillemots and Gannets . Passing Corbiere early on were 47 Balearic Shearwaters , 13 Manx Shearwaters , 5 Common Scoters , 13 Guillemots , 3 Fulmars , 49 Gannets , 2 Sandwich Terns , 13 Black-headed Gulls , 28 Mediterranean Gulls , also a Grey Seal. Overnight ringing at Plemont trapped and released 3 Manx Shearwaters , with 10+ birds in the vicinity, and a Storm Petrel. On St Ouen's Pond Scrape were 3 Little Ringed Plovers , but only briefly, the 2 Lapwings with their fast growing chick and 2 Oystercatchers . The odd couple of Pink-footed Goose and Barnacle Goose were in the Sandpits together. Good numbers of both Sand Martins and House Martins were flying by the Cutty Sark this afternoon. On St Ouen's Beach this afternoon were 93 Great Black-backed Gulls , 74 Lesser Black-backed Gulls and 60 Herring Gulls . In Grouville Bay were 31 Mediterranean Gulls , 75 Black-headed Gulls and 3 Swifts , with another 5 Swifts at Archirondel as well as a Peregrine . 6 Little Egrets were seen at Bel Croute. Below: Swallowtails have been seen in good numbers on the Island, recently, with this one posing at Le Pulec this morning MD
by Michael Dryden 8 July 2026
08.07.2026 A fine image of a pale Balearic Shearwater , image courtesy of John Ovenden JO The fine weather continued today, with light northerly winds and a temperature of 29c The quiet times are with us as we wait for the start of the Autumn migration proper. Balearic Shearwaters are with is in large numbers at the moment, with a count of the feeding birds off of Le Pulec in flat conditions, came to 3,400 birds. Also in the feeding area were 620, mainly Herring Gulls and a few Gannets and Lesser Black-backed Gulls , with 2 Peregrines , 4 Ravens , 3 Curlews and 16 Cormorants also seen. Off of Corbiere first thing were 73 Balearic Shearwaters , 9 Manx Shearwaters , 9 Common Scoters , 6 Guillemots , 27 Gannets , 23 Black-headed Gulls , 6 Mediterranean Gulls, 3 Swifts , a White Wagtail and 2 Peregrines . Bottle-nosed Dolphin s were seen at Corbiere, and later on , in St Ouen's Bay. In St Ouen's Bay were 104 Great Black-backed Gulls, 41 Lesser Black-backed Gulls , 37 Black-headed Gulls , a Mediterranean Gull and 2 Sandwich Terns . At Les Landes this morning were a Peregrine , 17 Swallows , 2 Swifts , 48 Meadow Pipits , 28 Linnets , a Skylark , 7 Stonechats , 2 White Wagtails and a Raven . At the Scrape this morning were the 2 Lapwings with their chick and 2 Oystercatchers . In St Catherine's Woods were a Bullfinch , a Jay and a Buzzard and in Vallee des Vaux were a fledged juvenile Bullfinch with an adult male in attendance. Evening update : Swifts featured this evening with 25 over Sandybrook, 6 at Plemont and 6 over Grouville Bay and a Common Sandpiper was seen at Plemont. Below : Another nice image by John Ovenden, of a raft of Balearic Shearwaters off the West coast
by Michael Dryden 7 July 2026
07.07.2026 Sedge Warbler at the Scrape yesterday. MD A fine and hot day (30c) in light winds. Evening update : A Quail was seen in flight at Portelet this evening and 10 Storm Petrels were off the West coast, also a raft of c200 shearwaters were near Corbiere. In St Ouen's Bay were 92 Great Black-backed Gulls and 66 Lesser Black-backed Gulls .6 Swifts were seen over St Helier. The glut of shearwaters off the West coast continued today, with an estimated 2000 - 3000, mainly Balearic Shearwaters , feeding off Le Pulec with gulls. Seen passing Corbiere and heading in that direction were 389 Balearic Shearwaters , 13 Manx Shearwaters , 7 Guillemots , 57 Gannets , 7 Cormorants , 44 Lesser Black-backed Gulls , 6 Mediterranean Gulls and 2 Black-headed Gulls . Also seen were a Curlew heading South and 2 Swifts . In Petit Port Bay were 26 Curlews and a Whimbrel and at Le Pulec were 22 Curlews . Around St Ouen's Pond were 2 Grey Herons , a Common Sandpiper , a Sedge Warbler , 2 Whitethroats , 2 pairs of Stonechats feeding young and many pairs of Reed Warblers doing likewise. On the Scrape, the 2 Lapwings were still present with their chick, also 2 Oystercatchers and a White Wagtail and around Kempt Tower were a little Grebe , 2 Stonechats , a singing Whitethroat , several pairs of Reed Warblers and a family of 5 Swallows . At La Haule in St Aubin's Bay were 230 Black-headed Gulls , 25 Mediterranean Gulls, including 5 juveniles, and at St Aubin were 4 Redshanks . A Stonechat was on Beauport Common and a Dartford Warbler was at Gorselands. At Crabbe this morning were 4 Swifts , 2 Swallows , 2 Dartford Warblers , 3 Whitethroats , 2 Ravens , 2 Peregrines and good numbers of Linnets . In St Catherine's Woods were 2 Firecrests , 4 Short-toed Treecreepers , a Bullfinch , 8 House Martins , 5 Swallows and Moorhens on a second brood of 2 chicks. Back to yesterday evening when, in La Braye Sandpits were 220 Coot, 48 Tufted Ducks, 2 Little Grebes , 6 Swifts , an estimated 60 Sand Martins and 2 juvenile Marsh Harriers .
by Michael Dryden 6 July 2026
06.07.2026 The juvenile Black Redstart which was at Corbiere this morning. MD Early morning fog soon cleared to a fine and very warm day in light winds. A short seawatch from Corbiere this morning saw 209 Balearic Shearwaters, 3 Manx Shearwaters , 6 Guillemots , 2 Fulmars , 10 Gannets , and 20 Lesser Black-backed Gulls , while on the headland were a juvenile Black Redstart , 7 Rock Pipits and 2 Choughs . The feeding patch at the north end of St Ouen's Bay was very active again with gulls and shearwaters and on St Ouen's Beach were 50 Great Black-backed Gulls, 17 Lesser Black-backed Gulls , 17 Black-headed Gulls and 4 Mediterranean Gulls . Roosting at Petit Port were 19 Curlews . At St Ouen's Pond were 4 Grey Herons, 3 Tufted Ducks , 2 Oystercatchers , 15 Swifts , 12 Sand Martins and 6 Swallows and on the Scrape were 2 Lapwings , still with a fast-growing chick, 2 Oystercatchers , 3 Shovelers , a Sedge Warbler , 5 juvenile Reed Warblers , a male Stonechat and 2 further Swifts . This morning, at St Aubin, were 32 Black-headed Gulls , 5 Mediterranean Gulls and 2 Redshanks and 13 Swifts were seen over St Catherine's. Below: A Golden-ringed Dragonfly on the path to the Scrape Hide this morning. MD
by Michael Dryden 5 July 2026
05.07.2026 Female and juvenile Shovelers on the South Canal. MD Another cool and overcast morning, giving way to a fair afternoon in a west-northwest wind. Gulls are returning to the Island, post breeding now and in Grouville Bay today were 43 Mediterranean Gulls , c100 Black-headed Gulls and also, a Sandwich Tern . In St Ouen's Bay were 74 Great Black-backed Gulls , 37 Lesser Black-backed Gulls, 41 Black-headed Gulls, 2 Mediterranean Gulls , and 11 Herring Gulls . Offshore in St Ouen's Bay, the feeding patch was busy again with hundreds of Gulls , Shearwaters , Auks and Gannets seen. Another quiet morning off Corbiere saw 30 Balearic Shearwaters , 10 Manx Shearwaters , 57 Gannets , 4 Fulmars , 16 Guillemots , 17 Shags , 26 Lesser Black-backed Gulls , 27 Great Black-backed Gulls , 6 Mediterranean Gulls and 2 Black-headed Gulls pass in three hours. 20 Curlews were at Petit Port. In St Aubin's Bay were 42 Black-headed Gulls, a Mediterranean Gull , 3 Redshanks and 7 Swifts . At St Ouen's Pond and Scrape were a Grey Heron, a Lapwing , 2 Oystercatchers , 2 Swifts , 10+ Sand Martins and 10 Swallows . A family of 4 Stonechats was on Les Blanches Banques. On the north of the Island, a Chough , a singing Blackcap , a Chaffinch and a Blue Tit family were seen near St Mary's Church, while at Les Platons were a Peregrine , 3 Ravens , a Dartford Warbler and a Swallowtail butterfly and at Victoria Tower were another 3 Swallowtails .
by Michael Dryden 4 July 2026
04.07.2026 Green Sandpiper on the Scrape this morning. MD An overcast morning with light drizzle and a cloudy afternoon in a cool (18c) west-northwest wind. Shearwaters were around in good numbers offshore in St Ouen's Bay this morning, with an estimate 1000 mainly Balearic Shearwaters joining many gulls feeding there.In contrast, only 23 Balearic Shearwaters and 7 Manx Shearwaters passed Corbiere early on. Others seen there included an inbound Great White Egret heading North, a Common Scoter , 8 Guillemots , 2 Razorbills , 22 Gannets , 2 Fulmars , 12 Black-headed Gulls , a Mediterranean Gull , 24 Lesser Black-backed Gulls and 32 Great Black-backed Gulls . Also seen was a pod of c10 Bottle-nosed Dolphins , 3 Ravens and a Marsh Harrier . 17 Curlews were in Petit Port Bay. On Les Ecrehous this afternoon were c200 Common Terns including varying sized chicks, 6 Turnstones and 2 Gannets . At St Ouen's Pond and Scrape were 2 juvenile and one female Shovelers , 2 Lapwings with a half-grown chick, 4 Oystercatchers , a Green Sandpiper, a Grey Heron and 2 Stonechats , with 3 Swifts overhead. Over St Catherine's breakwater were 9 Swifts . Below : Thanks to John Overton for this video of some of the many feeding gulls and shearwaters in St Ouen's Bay, looking south towards Corbiere. 
by Michael Dryden 3 July 2026
03.07.2026 Adult Peregrine passing Corbiere. MD A fine day, warmer at 23c in a southeasterly wind, Counts from Corbiere this morning included 144 Balearic Shearwaters , 44 Manx Shearwaters , 23 Guillemots , 4 Fulmars , 54 Gannets , a Common Sandpiper , 4 Mediterranean Gulls , 23 Black-headed Gulls, 14 Lesser Black-backed Gulls , 4 Sandwich Terns , a Peregrine and a Marsh Harrier . Roosting at Petit Port were 22 Curlews , including a regularly visiting Polish flagged bird, a Mediterranean Gull , 7 Black-headed Gulls , and a Lesser Black-backed Gull. The usual feeding patch west of L'Etacq held several hundreds of Balearic Shearwaters, Herring Gulls , Black-headed Gulls and Gannets . On St Ouen's Beach were 16 Great Black-backed Gulls , 11 Lesser Black-backed Gulls , 9 Black-headed Gulls , 4 Mediterranean Gulls , 8 Sandwich Terns and 13 Herring Gulls , but at Plemont just one Razorbill was seen. At St Ouen's Pond and Scrape were a Lapwing with a juvenile bird, 2 Oystercatchers , 3 Grey Herons , a fledged juvenile Marsh Harrier and 4 Swifts . At La Rocque were 46 Black-headed Gulls , 10 Mediterranean Gulls and a Sandwich Tern and at St Aubin were 52 Black-headed Gulls , a Mediterranean Gull and a Redshank . Seen at Grands Vaux reservoir were 2 Grey Herons , and a Sparrowhawk , with a fledged juvenile Marsh Harrier seen in Grouville Marsh.
by Michael Dryden 2 July 2026
02.07.2026 Marsh Harrier near Kempt Tower. Image: MD A morning of overcast skies and some hill fog, becoming fair this afternoon in a strong westerly wind. A quieter morning at Corbiere, saw 94 Balearic Shearwaters , 63 Manx Shearwaters , 16 Guillemots , 8 Fulmars , 36 Gannets , a Common Scoter , 3 Cormorants , 44 Lesser Black-backed Gulls , 12 Great Black-backed Gulls , 2 Black-headed Gulls and a Mediterranean Gull passing in three hours. 3 Ravens and 2 Choughs visited the headland. Most of the recent visiting waders at the Scrape had departed by this morning, leaving only the local breeding Oystercatchers and 3 Lapwings with one half-grown chick still in situ. Also at the Scrape were a male Teal , a female Shoveler and 2 Tufted Ducks there, with 15 Swifts , 5 Lesser Black-backed Gulls and a Black-headed Gull flying over. On St Ouen's Beach were an adult Yellow-legged Gull , 7 Black-headed Gulls , 30 Great Black-backed Gulls and 7 Lesser Black-backed Gulls . In the Sandpits were 28 Tufted Ducks, 5 Little Egrets , a Grey Heron , 2 Little Grebes, 6 Oystercatchers , c150 Coot and good numbers of Sand Martins . On Grands Vaux reservoir were a Grey Wagtail and 2 Grey Herons . A Map butterfly was seen on the southern edge of Grouville Marsh.
by Michael Dryden 1 July 2026
01.07.2026 . A Common Sandpiper on the Scrape this morning MD A fair to cloudy day in a moderate west-northwest wind. This morning's offerings at St Ouen's Pond and Scrape included the 2 Black-tailed Godwits , a Greenshank , a Common Sandpiper , 2 Oystercatchers , 3 adult Lapwings with one chick, a male Teal , a female Shoveler , a Grey Heron and at least 5 Swifts . Seen from Corbiere in three hours this morning were 243 Balearic Shearwaters , 18 Manx Shearwaters , 8 Fulmars , 29 Gannets , 21 Guillemots , 4 Cormorants , 3 Mediterranean Gulls, 8 Black-headed Gulls , 12 Lesser Black-backed Gulls and 12 Great Black-backed Gulls , also a Marsh Harrier. Roosting in Petit Port Bay were 18 Curlews and 60 Oystercatchers . Seen at Le Pulec were 4 Little Egrets , 14 Cormorants , 6 Oystercatchers , an adult and a juvenile Stonechat and a Grey Seal . At St Aubin were 32 Black-headed Gulls and 11 Swifts and at the Gunsite were 8 Black-headed Gulls and 2 Mediterranean Gulls . A single Curlew was in St Brelade's Bay. On Grouville Common were 2 singing Cirl Buntings . Below : Especially for those not fortunate enough to catch up with the one day visiting Lesser Yellowlegs , on St Ouen's Pond Scrape on the 29th, a short video with many thanks to Jo Bramley !
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