I-WeBS Courtmacsherry Bay, Broadstrand Bay & Dunworley Trends Report
I-WeBS Trends Report 1994/95 – 2019/20
Published 2022-04-01
Introduction
This report presents site trends based on the data gathered by the Irish Wetland Bird Survey (I-WeBS). Only species with sufficient data at Courtmacsherry Bay, Broadstrand Bay & Dunworley (site code 0L499) are presented.
This report is part of the I-WeBS National and Site Trends Report 1994/95 – 2019/20.
For guidance on how to interpret these trends, please see the I-WeBS Trends Report Guidance.
For details on the methods used to generate these trends, please see the I-WeBS Trends Report Methodology.
Site Summary
| Species | Courtmacsherry Bay, Broadstrand Bay & Dunworley - 5 Year | Courtmacsherry Bay, Broadstrand Bay & Dunworley - 12 Year | Courtmacsherry Bay, Broadstrand Bay & Dunworley - 23 Year | Long Term Trend |
|---|---|---|---|---|
| Knot | -98.6 | -99.8 | -98.8 | Large Decline |
| Bar-tailed Godwit | -60.8 | -70.4 | -80.3 | Large Decline |
| Lapwing | 16.0 | -41.1 | -72.4 | Large Decline |
| Red-breasted Merganser | -11.1 | -25.6 | -71.3 | Large Decline |
| Dunlin | 9.4 | -68.1 | -71.0 | Large Decline |
| Curlew | 11.2 | -15.0 | -69.9 | Large Decline |
| Turnstone | -78.0 | -85.2 | -68.7 | Large Decline |
| Mallard | -34.4 | -41.7 | -53.8 | Large Decline |
| Shelduck | -27.5 | -18.2 | -43.7 | Moderate Decline |
| Mute Swan | -37.2 | -22.2 | -42.2 | Moderate Decline |
| Cormorant | -34.4 | -24.1 | -41.1 | Moderate Decline |
| Oystercatcher | -3.8 | -11.4 | -21.7 | Intermediate Decline |
| Redshank | -4.1 | -20.6 | -18.2 | Intermediate Decline |
| Wigeon | -39.7 | -22.9 | -8.5 | Intermediate Decline |
| Greenshank | 13.5 | 7.3 | 6.3 | Stable or Increasing |
| Teal | -26.6 | 17.6 | 17.6 | Stable or Increasing |
| Grey Heron | 10.3 | 101.4 | 21.9 | Stable or Increasing |
| Ringed Plover | -38.2 | -23.2 | 58.3 | Stable or Increasing |
| Black-tailed Godwit | -4.1 | -1.1 | 72.2 | Stable or Increasing |
| Great Crested Grebe | -27.2 | 421.1 | 94.1 | Stable or Increasing |
| Little Egret | 5.9 | 11.1 | 291.3 | Stable or Increasing |
| Shoveler | -73.0 | 645.9 | 847.9 | Stable or Increasing |
| Light-bellied Brent Goose | -26.9 | 590.9 | 1800.0 | Stable or Increasing |
Species Analysis
Light-bellied Brent Goose
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Courtmacsherry Bay, Broadstrand Bay & Dunworley | -26.9 | 590.9 | 1800.0 |
| National | -11.2 | 1.2 | 93.3 |
Mute Swan
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Courtmacsherry Bay, Broadstrand Bay & Dunworley | -37.2 | -22.2 | -42.2 |
| National | 4.6 | 9.6 | 13.8 |
Shelduck
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Courtmacsherry Bay, Broadstrand Bay & Dunworley | -27.5 | -18.2 | -43.7 |
| National | 6.3 | -0.8 | 9.3 |
Shoveler
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Courtmacsherry Bay, Broadstrand Bay & Dunworley | -73.0 | 645.9 | 847.9 |
| National | 23.0 | -21.3 | -10.8 |
Wigeon
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Courtmacsherry Bay, Broadstrand Bay & Dunworley | -39.7 | -22.9 | -8.5 |
| National | 0.9 | -17.0 | -18.2 |
Mallard
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Courtmacsherry Bay, Broadstrand Bay & Dunworley | -34.4 | -41.7 | -53.8 |
| National | -11.3 | -19.7 | -19.1 |
Teal
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Courtmacsherry Bay, Broadstrand Bay & Dunworley | -26.6 | 17.6 | 17.6 |
| National | 1.8 | 5.7 | 19.4 |
Red-breasted Merganser
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Courtmacsherry Bay, Broadstrand Bay & Dunworley | -11.1 | -25.6 | -71.3 |
| National | -12.9 | 5.2 | -14.7 |
Great Crested Grebe
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Courtmacsherry Bay, Broadstrand Bay & Dunworley | -27.2 | 421.1 | 94.1 |
| National | -39.5 | -6.1 | -10.8 |
Oystercatcher
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Courtmacsherry Bay, Broadstrand Bay & Dunworley | -3.8 | -11.4 | -21.7 |
| National | -17.5 | -31.1 | 10.8 |
Lapwing
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Courtmacsherry Bay, Broadstrand Bay & Dunworley | 16.0 | -41.1 | -72.4 |
| National | -6.5 | -45.1 | -63.9 |
Ringed Plover
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Courtmacsherry Bay, Broadstrand Bay & Dunworley | -38.2 | -23.2 | 58.3 |
| National | -4.3 | -26.8 | -1.1 |
Curlew
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Courtmacsherry Bay, Broadstrand Bay & Dunworley | 11.2 | -15.0 | -69.9 |
| National | -9.4 | -23.7 | -43.1 |
Bar-tailed Godwit
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Courtmacsherry Bay, Broadstrand Bay & Dunworley | -60.8 | -70.4 | -80.3 |
| National | -32.6 | -13.9 | -5.1 |
Black-tailed Godwit
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Courtmacsherry Bay, Broadstrand Bay & Dunworley | -4.1 | -1.1 | 72.2 |
| National | 22.5 | 25.0 | 92.3 |
Turnstone
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Courtmacsherry Bay, Broadstrand Bay & Dunworley | -78.0 | -85.2 | -68.7 |
| National | -33.6 | -46.0 | -23.7 |
Knot
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Courtmacsherry Bay, Broadstrand Bay & Dunworley | -98.6 | -99.8 | -98.8 |
| National | 0.0 | -12.2 | -9.8 |
Dunlin
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Courtmacsherry Bay, Broadstrand Bay & Dunworley | 9.4 | -68.1 | -71.0 |
| National | 5.9 | -21.2 | -45.2 |
Redshank
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Courtmacsherry Bay, Broadstrand Bay & Dunworley | -4.1 | -20.6 | -18.2 |
| National | -14.0 | -28.4 | 6.7 |
Greenshank
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Courtmacsherry Bay, Broadstrand Bay & Dunworley | 13.5 | 7.3 | 6.3 |
| National | 0.9 | 7.3 | 41.0 |
Cormorant
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Courtmacsherry Bay, Broadstrand Bay & Dunworley | -34.4 | -24.1 | -41.1 |
| National | 38.5 | 8.4 | 42.9 |
Grey Heron
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Courtmacsherry Bay, Broadstrand Bay & Dunworley | 10.3 | 101.4 | 21.9 |
| National | 1.0 | -4.9 | 6.6 |
Little Egret
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Courtmacsherry Bay, Broadstrand Bay & Dunworley | 5.9 | 11.1 | 291.3 |
| National | 34.6 | 61.5 | 483.3 |
Citations
Please cite this work as follows:
Kennedy, J., Burke, B., Fitzgerald, N., Kelly, S.B.A., Walsh, A.J. & Lewis, L.J. 2022. Irish Wetland Bird Survey: I-WeBS National and Site Trends Report 1994/95 – 2019/20. BirdWatch Ireland Waterbird Report to the National Parks and Wildlife Service. BirdWatch Ireland, Wicklow. (https://birdwatchireland.ie/app/uploads/2022/04/iwebs_trends_report.html)