Data Zone
The site was identified as internationally important for bird conservation in 2002 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 | passage (1992) | 220 birds | C2, C6 |
| Tundra Swan Cygnus columbianus | LC | passage (1993) | 392 birds | A4i, B1i, C2 |
| Corncrake Crex crex | LC | breeding (1997) | 1 pairs | C6 |
| Spotted Crake Porzana porzana | LC | breeding (1997) | 2–3 pairs | C6 |
| Eurasian Bittern Botaurus stellaris | LC | winter (1995) | 1 birds | C2, C6 |
| Eurasian Golden Plover Pluvialis apricaria | LC | passage (1989) | 250 birds | C6 |
| Black-tailed Godwit Limosa limosa | NT | breeding (2001) | 118–120 pairs | B2 |
| Ruff Calidris pugnax | LC | passage (1989) | 110 birds | C6 |
| Ruff Calidris pugnax | LC | breeding (1995) | 2 pairs | C6 |
| Wood Sandpiper Tringa glareola | LC | passage (1993) | 3 birds | C6 |
| Short-eared Owl Asio flammeus | LC | breeding (1997) | 1 pairs | C6 |
| Short-eared Owl Asio flammeus | LC | winter (1989) | 3 birds | C6 |
| Western Marsh-harrier Circus aeruginosus | LC | breeding (1997) | 11 pairs | C6 |
| Peregrine Falcon Falco peregrinus | LC | resident (1997) | 1 pairs | C6 |
| Bluethroat Luscinia svecica | LC | breeding (1997) | 4 pairs | C6 |
| Year | Protected Area | Designation (management category) | % coverage of IBA |
|---|---|---|---|
| - | Blockland -- Untere Wumme -- Westliches Hollerland | Landscape Protected Area (-) | - |
| 1968 | Blockland - Burgdammer Wiesen | Landschaftschutzgebiet (V) | 82 |
| 1968 | Borgfeld-Timmersloh, Warf, Kuhweide | Landschaftschutzgebiet (V) | 1 |
| 1968 | Bremen 1968 36. Änderung | Landschaftschutzgebiet (V) | 83 |
| 1984 | Kuhgrabensee 1. Änderungsverordnung | Naturschutzgebiet (IV) | 1 |
| 1988 | Untere Wümme | Naturschutzgebiet (IV) | 4 |
| 1991 | Westliches Hollerland (Leher Feld) 2. Änderungsverordnung | Naturschutzgebiet (IV) | 8 |
| 1991 | Untere Wümme 1. Änderungsverordnung | Naturschutzgebiet (IV) | 4 |
| 2009 | Grambker Feldmarksee | Naturschutzgebiet (IV) | 1 |
| Habitat | % of IBA | Habitat detail |
|---|---|---|
| Grassland | 80 | Humid grasslands |
| Wetlands (inland) | 15 | Standing freshwater; Rivers and streams; Water fringe vegetation |
| Forest | 5 | Alluvial and very wet forest |
| Marine Neritic | minor (<10) |
| Land use | % of IBA |
|---|---|
| agriculture | 80 |
| hunting | 80 |
| nature conservation and research | 20 |
| water management | 15 |
| tourism/recreation | 10 |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Blockland - lower Wümme valley - Westliches Hollerland (Germany). Downloaded from
https://datazone.birdlife.org/site/factsheet/blockland--lower-wümme-valley--westliches-hollerland-iba-germany on 23/12/2024.