I have just returned from another excellent trip to Horsvaer, in Nordland, Norway with Morten Helberg. For a second time Morten had invited me back to help him colour-ring the chicks of the Baltic Gulls that nest around the Horsvaer archipelago. We also visited Hortvaer and Fjordholmen.
To reach Horsvaer, I flew from Stanstead to Oslo where I teamed up with Morten and then we flew north to Trondheim and on to Brønnøysund. A quick dash to the small shop for provisions was in order and then we boarded our boat Teist (Norwegian for Black Guillemot).
Despite it being overcast the sea was flat calm so Runar our captain soon had us at the mooring in a sheltered natural harbour at Horsvaer. Picture the scene, three White-tailed Eagles roosting a couple of hundred metres away; Short-eared Owls quartering the island, Black Guillemots splashing about a few metres from our boat, a pair of Red-throated Divers off our stern and several Arctic Skuas were harassing the Arctic Terns that were raising their chicks all around us.
We woke to dreary skies and as we eat our breakfast it started to rain. After it stopped raining we began our search for Baltic Gull chicks.
Most of the chicks hide in thick vegetation, but on some of the islands there are fewer hiding places, which made our task a little easier. Morten is the ringer and he worked tirelessly to ring just over 280 birds. Below you can see him taking measurements.
The Baltic Gulls of Horsvaer are the subject of a paper written by Morten Helberg, Mars Muusse and myself which will be published in British Birds next month. The paper explains why we believe these birds should be treated as Baltic Gulls. Some controversy surrounds the birds due to concerns in Britain that the colonies are mixed - pale- and black-mantled birds. However, we have only seen two pale-mantled birds amongst hundreds of Black-mantled ones. The paper explains in detail the identification, moult and migration of these birds from Horsvaer. The mixed colonies are found further north in Troms and Finnmark.
On the second day we put in a long shift, finishing at midnight. The scenery is top draw at Horsvaer, but the scene at midnight was a real treat to the eyes.
Whilst we spent most of our time searching for Baltic Gull chicks and ringing them, we also got to see some great birds. We saw seven Great Northern Divers including an adult; on one of the islands a juvenile Red-throated Diver was on a small pool and plenty of massive White-tailed Eagles kept their eyes on us.
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It appears to have been a good breeding season on Horsvaer. Several pairs of Turnstone were behaving as though they had chicks.
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The Arctic Skuas were also doing well.
In all we slept three nights on Teist, although I didn't sleep that well, as it got light really early. The two Norwegians didn't seem to suffer the same problem.
The sun appeared on our second full day and it got hotter and hotter, so much so that we found ourselves breaking into a sweat as we worked :-)
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Hortvaer was a new site for me and it had been 10 years since Morten was there last. The gull colony was very healthy and the chicks were maturer than those at Horsvaer.
The last part of our trip was spent at Fjorholmen. This island is close to the mainland and it supports a splendid Baltic Gull colony. One of the chicks we ringed there in 2017 has recently been seen in Sheffield. This one ticked the boxes for first-summer Baltic Gull.
PHOTOS OF THE 'HORSVAER GULLS'.
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| Baltic Gulls Larus fuscus fuscus |
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| Baltic Gull Larus fuscus fuscus |
To reach Horsvaer, I flew from Stanstead to Oslo where I teamed up with Morten and then we flew north to Trondheim and on to Brønnøysund. A quick dash to the small shop for provisions was in order and then we boarded our boat Teist (Norwegian for Black Guillemot).
 |
| Teist |
Despite it being overcast the sea was flat calm so Runar our captain soon had us at the mooring in a sheltered natural harbour at Horsvaer. Picture the scene, three White-tailed Eagles roosting a couple of hundred metres away; Short-eared Owls quartering the island, Black Guillemots splashing about a few metres from our boat, a pair of Red-throated Divers off our stern and several Arctic Skuas were harassing the Arctic Terns that were raising their chicks all around us.
We woke to dreary skies and as we eat our breakfast it started to rain. After it stopped raining we began our search for Baltic Gull chicks.
 |
| Presumed L. f. fuscus Chick |
Most of the chicks hide in thick vegetation, but on some of the islands there are fewer hiding places, which made our task a little easier. Morten is the ringer and he worked tirelessly to ring just over 280 birds. Below you can see him taking measurements.
 |
| Morten Helberg Busy Ringing a Chick |
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| Due to the vegetation it is not so easy to find the chicks on some islands. |
The Baltic Gulls of Horsvaer are the subject of a paper written by Morten Helberg, Mars Muusse and myself which will be published in British Birds next month. The paper explains why we believe these birds should be treated as Baltic Gulls. Some controversy surrounds the birds due to concerns in Britain that the colonies are mixed - pale- and black-mantled birds. However, we have only seen two pale-mantled birds amongst hundreds of Black-mantled ones. The paper explains in detail the identification, moult and migration of these birds from Horsvaer. The mixed colonies are found further north in Troms and Finnmark.
 |
| Baltic Gulls Larus fuscus fuscus |
 |
| Baltic Gull Larus fuscus fuscus |
On the second day we put in a long shift, finishing at midnight. The scenery is top draw at Horsvaer, but the scene at midnight was a real treat to the eyes.
 |
| Roosting Baltic Gulls at Midnight |
Whilst we spent most of our time searching for Baltic Gull chicks and ringing them, we also got to see some great birds. We saw seven Great Northern Divers including an adult; on one of the islands a juvenile Red-throated Diver was on a small pool and plenty of massive White-tailed Eagles kept their eyes on us.
It appears to have been a good breeding season on Horsvaer. Several pairs of Turnstone were behaving as though they had chicks.
The Arctic Skuas were also doing well.
In all we slept three nights on Teist, although I didn't sleep that well, as it got light really early. The two Norwegians didn't seem to suffer the same problem.
The sun appeared on our second full day and it got hotter and hotter, so much so that we found ourselves breaking into a sweat as we worked :-)
Hortvaer was a new site for me and it had been 10 years since Morten was there last. The gull colony was very healthy and the chicks were maturer than those at Horsvaer.
 |
| Hortvaer |
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| Fjordholmen |
PHOTOS OF THE 'HORSVAER GULLS'.