Data Zone
The site was identified as internationally important for bird conservation in 2000 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.
Populations meeting IBA criteria ('trigger species') at the site:| Species | Red List | Season (year/s of estimate) | Size | IBA criteria |
|---|---|---|---|---|
| Whooper Swan Cygnus cygnus | LC | non-breeding (1994) | 548 birds | B1i, C2 |
| Tundra Swan Cygnus columbianus | LC | non-breeding (1994) | 402 birds | A4i, B1i, B2, C2 |
| Eurasian Bittern Botaurus stellaris | LC | breeding (1992) | 24 pairs | B2, C2, C6 |
| A4iii Species group - waterbirds | n/a | unknown (-) | min 20,000 birds | A4iii, C4 |
Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2000. The most recent assessment (2010) is shown below.
| IBA conservation assessment | |||
|---|---|---|---|
| Year of assessment | State | Pressure | Response |
| 2010 | very poor | not assessed | not assessed |
| Whole site assessed? | State assessed by | Accuracy of information | |
| yes | population | good | |
| State (condition of the trigger species' populations) | |||||
|---|---|---|---|---|---|
| Species | Actual vs Reference (units) | % remaining | Result | ||
| Red-breasted Merganser Mergus serrator | 3,020 / 3,020 (birds) | 100 | good | ||
| Eurasian Wigeon Mareca penelope | 2,670 / 2,670 (birds) | 100 | good | ||
| Corncrake Crex crex | 3 / 3 (pairs) | 100 | good | ||
| Spotted Crake Porzana porzana | 1 / 75 (pairs) | 2 | very poor | ||
| White Stork Ciconia ciconia | 0 / 1 (pairs) | 0 | very poor | ||
| Eurasian Bittern Botaurus stellaris | 18 / 36 (pairs) | 50 | poor | ||
| Great Cormorant Phalacrocorax carbo | 1,500 / 1,500 (birds) | 100 | good | ||
| Great Cormorant Phalacrocorax carbo | 1,121 / 2,100 (pairs) | 54 | poor | ||
| Pied Avocet Recurvirostra avosetta | 9 / 77 (pairs) | 12 | very poor | ||
| Black-tailed Godwit Limosa limosa | 11 / 41 (pairs) | 27 | very poor | ||
| Ruff Calidris pugnax | 6 / 32 (pairs) | 19 | very poor | ||
| Dunlin Calidris alpina | 7 / 33 (pairs) | 22 | very poor | ||
| Black Tern Chlidonias niger | 0 / 71 (pairs) | 0 | very poor | ||
| Common Tern Sterna hirundo | 1 / 45 (pairs) | 3 | very poor | ||
| Western Marsh-harrier Circus aeruginosus | 12 / 12 (pairs) | 100 | good | ||
| Circus cyaneus | 6 / 12 (birds) | 50 | poor | ||
| Falco peregrinus | 3 / 3 (birds) | 100 | good | ||
| Response (conservation actions taken for the trigger species and/or their habitats) | |||
|---|---|---|---|
| Designation | Planning | Action | Result |
| Not assessed | Not assessed | Not assessed | not assessed |
| Habitat | % of IBA | Habitat detail |
|---|---|---|
| Marine Coastal/Supratidal | 65 | |
| Grassland | 30 | Humid grasslands |
| Land use | % of IBA |
|---|---|
| nature conservation and research | 100 |
| agriculture | 20 |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Western part of Vejlerne, Arup Holm and Hovsør Røn (Denmark). Downloaded from
https://datazone.birdlife.org/site/factsheet/western-part-of-vejlerne-arup-holm-and-hovsør-røn-iba-denmark on 23/12/2024.