It has been seen in high numbers in 7 of the last 8 years. In autumn 2021 this species reached record numbers since 1990 (3709 ind.counted, average is 1144 ind.).
Report from autumn 2021
Lista Bird Observatory completed in 2021 its 32nd consecutive year of autumn ringing campaign. The station has been run for a total of 124 days from July 15 until November 15. 13 mist-nets have been currently used on the standardized program (138 meters) and the results have been much below average.
It shows the lowest numbers ever this season (since 1990).
This species had never been registered in the lighthouse area before.
This species had also a poor season being ringed 45% below average numbers. The results from long-term trends in the standardized ringing at Jomfruland and Lista bird stations show a significant decrease in the period 1990-2020 for this species.
The total of birds ringed this autumn has been 36% below average: 2596 birds ringed (average for autumn is 4062) of 57 different species.
The average temperature has been higher than normal throughout the year, with 1°C higher than normal from July until October, being October 2°C above normal. The precipitation has been far below normal this autumn, especially in September with rain 86% below average. There have been 25 days without ringing (compared to 22 days in 2020).
The numbers of ringed birds have been 36% down average, catching 10 species less than in 2020. The "top 5 species" in the nets have been Blue Tit (807), Willow Warbler (254), Goldcrest (174), Starling (139) and Wren (117).
The larger thrushes have been ringed in low numbers: Blackbird, Redwing and Song Thrush have been ringed between 39% and 67% down average. It is in addition, the first year with no Fieldfares in the nets (average is 16). Other species of small thrushes such as Robin, Whinchat and Northern Wheatear had also a poor season being respectively ringed 18%, 45% and 33% below average numbers.
All tits, finches and buntings have shown very low ringing numbers, especially Coal Tit, Willow Tit, Chaffinch, Greenfinch, Linnet, Lesser Redpoll, Siskin and Yellowhammer. All those species have been ringed between 40% and 95% below average. Crested Tit and Long-tailed Tit have been absent in the nets this autumn.
Many warblers have also been ringed in low numbers, such as Willow Warbler, Blackcap, Garden Warbler, Lesser Whitethroat and Common Whitethroat (been ringed between 30% and 73% below average.). Chiffchaff and Sedge Warbler are the exceptions, being ringed above average numbers.
We have been catching and colour-ringing Rock Pipits with playback and walk-in traps. We have in addition added some clap-nets with mealworms to attract more birds this year. A total of 138 individuals were ringed this autumn, which is by far the highest number since we started this project in 2015 (17 birds in 2020 and 85 in 2019).
In the standardized ringing we have continued colour ringing all White Wagtails, Stonechats, Rock Pipits and Wheatears, taking part of a national project of colour ringing, most of it run by Kjell Mork Soot.
Owl’s playback has been used during the nights in autumn when weather was suitable, catching 6 Tengmalm’s Owl on the non-standardized ringing.
From 1st of January to 15th November, 234 species have been recorded in the station area (12 less than last year).
There have been a few species that have been registered in very high numbers, such as, Ringed Plover, Woodcock, Kittiwake, Guillemot, European Shag, Carrion Crow, Hooded Crow and Brambling. All of them show record or almost record autumn numbers since 1990.
Some seabirds and ducks have been registered in high numbers, such as Shelduck, Long-tailed Duck and Red-throated Diver. However, other species have been seen in low numbers this autumn and show a decline in the last years: Common Teal, Black-headed Gull, Lesser Black-backed Gull, Fulmar and Common Tern. The last two species show the lowest numbers ever this season.
An important number of waders have also been registered low, including Oystercatcher, Lapwing, Whimbrel, Curlew, Ruff, Green Sandpiper, Redshank, Wood Sandpiper, Spotted Redshank and Greenshank. However, Black-tailed Godwit, Ruddy Turnstone, Red Knot, Sanderling and Purple Sandpiper have been observed in normal or high numbers. Ringed Plover, which is mentioned above, shows record numbers since 1990.
There has been a good number of unusual species in the area during the autumn. We have registered Sabine’s Gull, Long-tailed Jaeger, Great Egret, Pygmy Owl, Eagle Owl, Brown Shrike, Yellow-browed Warbler, Palla’s Leaf Warbler, Arctic Warbler, Firecrest, Rose-coloured Starling, Red-Breasted Flycatcher, Desert Wheatear and Little Bunting. The Arctic Warbler and the Brown Shrike had never been registered in the lighthouse area before. They are, respectively, second and first record for Adger county.
The Bird Observatory has continued to guide schools and private visitors in autumn in cooperation with the Lista Wetland Center. A total of 14 groups have been guided by the Bird Observatory this autumn.
Johanna Klein (Germany), Anne-Marie Austad (Norway), Karina Tjørve (Norway), Bård Olsen (Norway) and Gunnar Gundersen (Norway) have been volunteers at the station and helped Rubén Piculo and Aïda López on the fieldwork in autumn 2021. Despite the pandemic and the decline in the number of volunteers, the results have not been affected thanks to the daily efforts of everyone on the team.
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