Burhou Seabird ringing weekend

With covid situation hampering our seabird ringing research program this year we decided to combine two trips into one. As none of the pre-booked UK bird ringers were able to travel, Channel Islands Ringing Scheme members stepped in travelling from Guernsey by boat directly to Burhou to get the job done. The task ahead was to focus on the Storm Petrel colony over two nights and by daytime colour ringing the Lesser black backed Gull colony, plus ringing any other species chanced upon. Burhou is less than a mile from the NW corner of our island and just a 10 minute boat ride from Alderney. Soon after landing our team set up nets for at the NE end of the island ahead of the first Petrel ringing session. During the short walk from our Burhou hut base/accommodation we saw a resident Peregrine Falcon and then a migrating Honey Buzzard that headed towards mainland Alderney. Opening the nets as the light fell away our first bird to ring was a Rock Pipit. This species does exceptionally well on Burhou with several nesting pairs resulting in 50+ Rock Pipits occupying this tiny island. Further investigation of Rock Pipits here may prove very useful given there is nationally very little base-line data pertaining to this species. Soon we were fully employed as a steady stream of Storm Petrels, a truly delightful nocturnal seabird, visited our two 18 meter nets. Petrels tend to come in waves and our keen ringers worked exceptionally well as a team regularly changing roles to strengthen either the ringing or extraction team where they were most needed and best deployed. We worked non-stop through the night until 4am when we closed the nets ahead of first light. The following day was extremely hot so we delayed ringing any Gull chicks until the late afternoon to ensure none were exposed to the sun. It soon became very clear that these Gulls have had a very good breeding season as we ringed almost 50 directly behind the Burhou hut, a significant increase on chicks in this same area in recent years. Luckily the winds remained low with no rain forecast so our second night of Petrel ringing, now on the NW coast, could go ahead. As with the previous night we deployed two 18m nets (no tape lure). The night flew by with our team once again operating like a well oiled machine as the numbers of Petrels ebbed and flowed. As it turned out some 605 Petrels were processed, weather conditions were similar both nights as were the results with just under 300 birds processed the first night and just over 300 the 2nd. 514 new birds were ringed, 86 were re-traps and 5 foreign controls (4 UK & 1 French). Just under 50 Lesser black backed Gulls were colour ringed along with 2 Herring Gulls. We also chanced upon and ringed 2 Shag chicks and a single Rock Pipit. Amongst the re-trap Petrels 3 were 15yrs of age and one individual was 17yrs old.  Passing migrants included Grey Heron & Common Sandpiper. Given the obvious difficulties this year the ABO is delighted to have undertaken a significant proportion of the seabird research. The boat work was excellent landing our team safely, indeed the whole trip passed without incident. Thank you again to the local ringers for stepping in and doing a grand job. Storm Petrels have been ringed on Burhou since 1946 and the ABO is very proud to be leading this area of research now and into the future.

 

1st-31st May

1st-31st May

The first half of May usually sees less in the way of volume of birds passing through the island but usually more diversity that includes rare and scarce records to add to our data. Last year during these two weeks we recorded Alderneys first Thrush Nightingale. As you can see from this blog, this May certainly held some surprises. Breeding birds are in full swing and we hope to bring you news of a first breeding for Alderney in next months blog, for now we can reveal no further information as the welfare of the birds must come first, we want to give them every chance of success. A very good summary of Bailiwick wildlife law and clear guidance in terms of disturbing nesting wild birds at this time of year can be found on Guernseybirds website.  This May also saw our assistant warden Elliot achieve a new record for most species recorded in Alderney in a single day with 79 different species spotted on the 8th of the month.

The single male Teal remained until the 19th, it appears he has some identity issues as he has been observed trying very hard to win the attentions of female Mallards. 35 Common Scoter were seen during a sea-watch on the 26th along with 3 Storm Petrels, 23 Manx Shearwaters and 1 Balearic Shearwater, of the latter also 3 on the 20th and 1 on the 22nd. Only our 2nd record (since 2016) of Quail was recorded calling from a meadow at Fosse Herve on the 31st.  A memorable spring for birds of prey continued with a first record for The Channel Islands of Bearded Vulture. This magnificent bird was found and photographed by ABO board member Neil Harvey on the 19th with a couple of other lucky locals also noticing this gigantic bird and taking photos using their mobile phones. Though it was thought that the vulture departed high and to the north at 3pm, the following day it was again spotted, this time high over the Bird Observatory descending towards the lighthouse where it turned south west and out across the sea towards France. The bird had no signs of any transmitter, tagging, feather bleaching or rings and is likely wild born from captive released parents as part of the International Vulture Foundation re-introduction program of these birds to the Pyrenees and Alps. Just two posts on the ABO twitter page of this bird attracted over 150,000 views! The photograph below has subsequently featured in local and national newspapers, BBC & ITV news broadcasts and on BBC Countryfile.

Bearded Vulture (and Crow) over Mannez lighthouse – photo – John Horton

 

 

 

 

 

 

 

 

 

 

 

 

 

A chastened Osprey flew low over the war memorial headed NE on the 31st. After recording Black Kites into double figures in April, there were two May records; over Essex Hill on the 2nd and on the 12th over Burhou Island. Also on the 12th an adult female Hen Harrier was hunting at Kiln Farm. Hobby was recorded on 6 separate dates involving a total of 8 birds. A Merlin passed over Mannez on the 7th. 5 Honey Buzzards were recorded between the 8th & 21st.  On the 8th came our 2nd Black winged Kite of the spring (and no we couldn’t believe it either) some 16 days after the April bird this one appears to be a 2nd calendar year and was quite settled along the west coast where it spent the best part of 3hrs.

Black-winged Kite – Bonne Terre valley & west coast – photo – John Horton

 

 

 

 

 

 

 

 

 

 

 

 

A Greenshank was in Longis Bay on the 19th. Common Sandpipers were thin on the ground this year with only 7 individuals recorded, all during the first week of the month. Two 2nd calendar year Yellow legged Gulls were in  Longis Bay on the 11th. Pomarine Skua was seen offshore on the 2nd and on the 20th. A female Nightjar was hunting over Longis common at dusk on the 15th and a male was heard calling in a garden in St. Anne on the 19th. The Hoopoe ringed on the 26th of last month was still at Longis reserve until the 4th, likely the same bird was seen at Kiln farm on the 6th.  Two vocal Bee-eaters flew over Mannez reserve on the 7th, they only hung around for a couple of minutes before heading out to sea to the NE.

Common Sandpiper – Saye Bay – photo – John Horton

 

 

 

 

 

 

 

 

 

 

 

 

 

Cuckoo was recorded on 8 different days. Just two Turtle Dove records this spring, 1 on the 1st in St. Anne allotments and another over the NE of the island on the 8th. Swifts moved through in small numbers throughout the month with a high count of 20 on the 25th. Migrating Tree Pipits were recorded almost daily until mid month. Single Blue-headed Wagtails were at Whitegates fields on the 2nd and 12th, the high count of Yellow Wagtails was a flock of 22 on the 12th. An estimated 1200 Swallows gathered over Longis reserve on the evening of the 15th, about two thirds moved off to the north east about an hour ahead of dusk. A Wheatear was observed feeding a chick on the 14th, this species has successfully bred on Burhou island in recent years but I am struggling to find any mainland Alderney records of the same. A rare spring record of Mistle Thrush (migrant only here) was on Longis Common on the 16th. A female Pied Flycatcher ringed at Mannez on the 12th is our latest spring record to date. Spotted Flycatcher records involved 12 birds between the 1st & 25th. The last of 3 Common Redstarts was spotted on the 12th. A Nightingale ringed at Mannez on the 3rd was in good voice at the same location on the mornings of the 4th & 5th but not after. A very rare spring record and new for Alderney was a Radde’s Warbler spotted by assisstant warden Elliot on the 3rd along the railway sidings close to the waterworks, the bird was calling and showed briefly but well. Single Lesser Whitethroats were on the 2nd & 3rd. A fine spring plumage Rose-coloured Starling was moving with around 40 Common Starlings between the Fosse Herve fields and adjacent residential gardens on the 31st. Three Serin records were of a female at Val du Sud on the 3rd, a male on the campsite on the 12th, and another over the golf course on the 17th. 4 Common Crossbills were seen flying over Essex farm on the 14th.

 

Rose-coloured Starling – Fosse Herve – photo – John Horton

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Moth trapping has had a slow start but cught up with some bumper sessions towards the end of May with over 30 Small Elephant Hawkmoth and 66 Cream spot Tiger moths over 3 nights.

ABO moth trap contents 28th May- photo John Horton

 

 

 

 

 

18th – 30th April

18th – 30th April

During lockdown Elliot and I have made good use of our 2hrs exercise completing the census walk, a relaxation of the restrictions locally allowed us to obtain permission to resume bird ringing and have unrestricted census time from the 25th. The last two weeks of April are always a productive and exciting period for us here recording migration and this year didn’t disappoint. On the 23rd Paul Veron found a Canada Goose near the airport, a local rarity. On the 18th, 6 Dark bellied Brent Geese offshore were probably our last spring record for this year.  Two pairs of Common Shelduck appear to have settled at the north east end of the island and the male Teal remained present to month end. Single Manx Shearwaters were seen off the NE coast 19th & 21st. Black Kite was present on 8 seperate days between the 18th & 30th, with 2 seen together on the 25th. From photos of individual birds it looks like one of them (most unusually) hung around for a week and that the period saw 4 or 5 individual birds in total. A female Marsh Harrier passed through on the 23rd and a 2nd calendar year Hen Harrier showed well over Whitegates fields 21st. Hobby was seen on the 19th & 25th and a Merlin 21st.

Hen Harrier – Whitegates – Photo – JH

 

 

 

 

 

 

 

 

 

 

 

 

 

Black Kite – South Cliffs – photo – Elliot Monteith

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Water Rail was recorded up to the 26th sparking hopes of the repeat breeding of 2016. 4 Lapwing were reported from the Bonne Terre valley 21st. Other wader sightings included a Greenshank in Longis Bay on the 25th, a smart summer plumage Grey Plover 25th & 26th. A high count of 13 Dunlin on the 28th, Green Sandpiper showing well at Mannez reserve on the 21st, 4 single records of Bar-tailed Godwit (19th-28th) 2 Snipe on the 22nd and on the 30th a high count for this reporting period of 17 Whimbrel.

Grey Plover – Saye Bay – photo – JH

 

 

 

 

 

 

 

 

 

 

 

 

Whimbrel – Mannez Lighthouse, photo – JH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A dark phase Arctic Skua was spotted on the 19th and at least two immature Yellow legged Gulls regularly visited Saye Bay. The 18th brought an ‘observatory list’ (2016 onwards)first record as Elliot recorded a summer plumage Black Tern just offshore on the north east coast. A female Hoopoe ringed at Longis reserve on the 27th was still around on the 30th but very elusive. The 21st saw our first Swift movement with 19 recorded. On the 21st Elliot had brief views of a Red-rumped Swallow, a species I had expected to record before now, this the ABO’s first record although they have been recorded in the Channel Islands annually in recent years.

Hoopoe – Longis reserve- photo – JH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

On the 27th a Tree Pipit trapped at Longis reserve was wearing a Portuguese ring, this transpired to be the first time this species has ever been found sporting a ‘foreign’ ring in the Channel lsands, 8 Tree Pipits were spotted on the 18th and on the same day 17 Yellow Wagtails. On the 22nd at least 6 Common Redstarts were present in the census area and a female Pied Flycatcher was at Longis 30th. 38 Wheatears were counted on the 24th, single Whinchats 23rd & 24th and single Ring Ouzels 23rd & 25th. The first Garden Warbler this spring was on the 23rd and first Wood Warbler the same day. 3 Lesser Whitethroats were seen towards the month end including one ringed on the 25th. The remaining Fan-tailed Warbler at Longis reserve was ringed on the 19th and was present singing and displaying daily to the 30th.

 

 

Fan-tailed Warbler – Longis reserve photo – JH

 

 

 

 

 

 

 

 

 

 

We added Small Copper, Orange-tip and Painted Lady to species of butterfly recorded within our census area, and 6 impressive Emperor moths on the 25th.

The ABO led Bailiwick Garden Birdwatch was a great success and results will appear of the ABO social media pages tomorrow. Thanks to all those who took part.

The local Bailiwick islands newspapers and social media had done us proud publishing our article on Gannet behaviour see https://guernsey.com/news/2020/05/05/birdwatchers-notice-gannets-behaviour-change-due-to-virus/   Also the ABO twitter feed blog page achieved some great publicity for Alderney with an amazing 34,686 views at the time of posting this blog.

Lastly, other welcome news is our observatory field centre accommodation has just received our ‘Quality in Tourism’ certification awarding us 4 STARS! We are enormously proud to have achieved this high standard, all we need now is for you to be allowed to come and visit!

Stay safe everyone.

20th March – 17th April

20th March – 17th April

During lockdown field observations have been somewhat limited with just Elliot and I the only observers spending our 2hrs exercise working independently completing the daily census as far as is possible. Alderney remains a virus free zone as I type this blog and it is a huge credit to the local authorities and community that this has been achieved to date.

Some interesting Gull ring reads in the field 20th March included 2 Great Black backed Gulls originally ringed at Portland Bill Bird Observatory.  Other excellent research data was received from the Channel islands birds ringing scheme with news of a Dunlin ringed by a visiting Jersey ringer in Longis Bay Alderney in October 2016, re-trapped last year in Poland.

35 Dark bellied Brent Geese 5th Apr preceded a single on the 14th that may well be our last this spring. Common Shelduck peaked at 5 in Longis Bay 14th Apr. The male European Teal still present to at least the 18th Apr is looking very fine but may have to move on if he is to find a lady friend. Elliot spotted 2 Great Crested Grebes offshore on the afternoon of the 3rd Apr (an irregular and not annual visitor here – the Grebes that is, not Elliot). A movement of at least 22 Grey Herons passed over Alderney 5th April all headed NE.

European Teal – Longis pond – photo JH                                                                                                                                             An amazing run of birds of prey began on 31st March when Elliot observed a heavily mobbed adult White tailed Eagle over the bird observatory, our last island record of this species was in 1908.  Some 8 Merlins have been recorded during this blog reporting period and on the 15th April our first Black Kite this spring spent the afternoon with us having been seen in off the sea earlier that afternoon. It was great to see it perched in a tree on Longis reserve. The same day we had our first Hobby this year.

Black Kite Longis reserve – photo JH

Black Kite – Longis reserve – photo – JH                                                                                                                                       A red letter day for birds of prey came on 16th April. A female Hobby rifled across Longis Common, a pair of Peregrines hunted the NE coastline and 2 Ospreys were spotted both headed north towards the UK. Pottering in my garden at the lighthouse during lockdown (bins always to hand), mid afternoon I noticed a bird that looked interesting offshore headed straight towards us. Lifting my bins only one option was immediately obvious, it was a spectacular Black winged Kite! First spotted about 100 meters out, it was one of those magical birding moments I will never forget. This is a first record for Alderney and a species not recorded on mainland UK. The bird came in very low and drifted (mainly gliding on long wings) across Mannez quarry where upon reaching the quarry edge it rose to overlook the plateau of low vegetation above where it stopped and hovered (Kestrel like) taking up 3 or 4 positions hunting during a tantalising minute or so before heading SW in the direction of the observatory about half a mile away.  I was already on the phone to Elliot who charged into the observatory courtyard and managed a couple of record shot photos of the kite (good man) before it again headed SW and out of sight. My lasting memory of this event will be this Kite’s Owl like face looking straight at me as it approached dry land, and turning to my father (who is birder who was stood beside me) and squeaking the words ‘Black winged Kite’  with whom this became an even more priceless moment.

 

Black winged Kite – over the bird observatory Longis Bay – photo – Elliot Monteith                                                                                                                              Water Rail is still being recorded on Longis pond during our census work at least until the 16th Apr so high hopes of another breeding success for this species at this location. A single Redshank (uncommon here) was in Longis Bay 1st & 2nd Apr. Whimbrel numbers are picking up slowly with increasing single records and 3 on the 17th Apr. Yellow legged Gull sightings have involved at least 3 birds, the latest a 2nd Summer in Saye Bay on the 17th. On an exceptionally low tide 10th Apr there were 418 Herring Gulls in Braye Bay.  A Common Tern fishing off the lighthouse in company with two Sandwich Terns 5th April pre-empted some interesting movements at sea on the 6th & 13th Apr. On the 6th, 11 Little Gulls, 6 Common, 4 Arctic & 23 Sandwich Terns and on the latter date 1 Little Gull, 6 Sandwich Terns and a Pomarine Skua. Our first Cuckoo this year was seen and heard on the golf course on the 10th Apr. Swallows and Martins have been coming through but not yet into 3 figures on any given day. 20 Tree Pipits have been recorded since 6th April and Elliot is bravely taking on the challenge of Yellow Wagtail sub species identification, recording 2 Blue-headed and several Channel so far with a single day high count so far of 28 Yellow Wagtails on the 11th Apr. Our first Common Redstart of the year were 2 on the 6th April, Black Redstarts have seen 18 records this reporting window but none since the 12th. Wheatears continue to ebb and flow with 35 on the 5th Apr including 4 ‘Greenland’ birds. Our first 2020 Pied Flycather was a fine male in Barackmasters Lane 15th Apr and the first Whinchat the day after a Whitegates. The persistent east winds brought us a fall of Song Thrushes 4th April with at least 62 birds recorded (all the nominate European birds). Sporadic records of winter thrushes were trumped on the 2nd Apr with an estimated 380 Redwings and 420 Fieldfares. 11 Ring Ouzels have been seen, the lastest 2 males on the 16th Apr. First spring records were of Garden Warbler 17th Apr, Common Whitethroat & Sedge Warbler 5th Apr, Reed Warbler 10th Apr and Grasshopper Warbler reeling on the 6th Apr. Fan-tailed Warblers have become a fixture at Longis reserve since early March and certainly 3 birds were present 8th Apr. A Rook 5th Apr was only the 2nd one since the obs launched in spring 2016. 2 female Serins were at Barrackmasters lane 5th & 6th Apr.

 

Yellow Wagtail – Whitegates – photo -Elliot Monteith                                                                                                                                                                  Moth trapping has been a slow start with Powdered Quaker probably our best local record thus far as this species is scarce here unlike the UK.  Also a female Emperor moth in the Obs moth trap 12th April. Our 2nd Large Tortoiseshell butterfly was on the 4th April and 1st Green Hairstreak on the 12th. Sadly with the annual spring Naturetrek holiday group visit unable to go ahead I missed the delight of showing off one particular area carpeted with the Green Winged Orchid. Somehow this Palmate newt managed to get into out bird bath that is 2ft off the ground… and just about wraps up this blog leaving me only to say stay safe everybody, we hope you enjoy the ABO blog and don’t forget for all those who live in the Bailiwick the Big Garden Birdwatch week starts on the 24th April.

Palmate Newt – Mannez Lighthouse Garden – photo JH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Green-winged Orchid – NE Alderney 16th April photo – JH

Emperor moth (female) NE Alderney – photo – JH

 

March 9th – 19th

March 9th – 19th

A Singe Brent Goose joined a high count of 5 Shelduck in Longis Bay on the 14th and the lone male Teal remains on Corbletts quarry. Black-throated Diver was on the sea off Mannez Lighthouse on the early morning high tide on the 11th, and probably the same bird off fort Razz on the 15th.  4 Whimbrel and 5 Turnstone on fort Houme Herb 11th were the high counts for these species during this blog period. 3 Purple Sandpipers at Fort Razz on the 16th was a rare sight here adding to records of only 2 individuals since we began recording in April 2016.  A  Snipe seen on the 17th was surprisingly our first of the year and an indication of the very mild winter. An Osprey passed over the ABO census area on the 16th. Water Rails remain in good numbers especially at Longis pond where up to 6 make themselves heard towards dusk. A Yellow Legged Gull was spotted on the 10th and on the 19th a Bonxie offshore at Houme Herbe.

Purple Sandpiper, Fort Razz, Photo Elliot Monteith

 

 

 

 

 

 

 

 

A Barn Owl is still favouring hunting between the target wall and Longis common during calmer weather and 2 Kingfishers were confirmed on the 16th. 4 Sand Martins passed by Corbletts Bay 11th, 3 on the 16th & 12 at Longis (18th) our first Swallow was at Mannez (19th). A Black Redstart (photo below) was at the obs on the 17th on the ‘new’ roof of the old armoury building, a pair of White Wagtails were present at the same spot surveying it for nesting opportunities. No large movements of Wheatears yet, recorded daily during our census, 9 seen on the 19th will likely soon become a very low day total.  A rare for Alderney spring record of Mistle Thrush was of a single bird about the conifer tops close the Nunnery on the 11th.

Black Redstart – The Nunnery (ABO) photo JH

 

 

 

 

 

 

 

 

 

 

White Wagtail – The Nunnery (ABO) Photo JH

 

 

 

 

 

 

 

 

 

 

 

 

 

The first fair movement of Chiffchaffs was of around 100 birds on the 16th and on the same afternoon we ringed a Fan-tailed Warbler (zitting Cisticola) at Longis Nature reserve. Also of note locally, a spring record of Reed Bunting at Longis on the 19th.

Fan-tailed Warbler – Longis Reserve – Photo JH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

On the 16th our first Peacock butterfly records of the year, 6 were seen during the daily census, on the same day our first Humingbird Hawkmoth of 2020. Unfavourable conditions have largely curtailed moth trapping thus far limiting us to just two sessions. Below photo a fine ‘Oak Beauty’ on the 17th.

Oak Beauty – Biston strataria, Photo- JH