I-WeBS Rosscarbery 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 Rosscarbery (site code 0L476) 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 | Rosscarbery - 5 Year | Rosscarbery - 12 Year | Rosscarbery - 23 Year | Long Term Trend |
|---|---|---|---|---|
| Red-breasted Merganser | -40.7 | -71.1 | -87.6 | Large Decline |
| Grey Plover | -83.8 | -70.0 | -85.5 | Large Decline |
| Golden Plover | -74.5 | -80.0 | -82.3 | Large Decline |
| Knot | -98.6 | -91.9 | -77.5 | Large Decline |
| Little Grebe | -72.3 | -45.3 | -73.6 | Large Decline |
| Lapwing | -29.0 | -45.3 | -61.7 | Large Decline |
| Dunlin | -56.6 | -41.0 | -60.0 | Large Decline |
| Curlew | -33.0 | -41.7 | -54.7 | Large Decline |
| Oystercatcher | -13.1 | -34.4 | -50.9 | Large Decline |
| Teal | 126.5 | 7.8 | -48.1 | Moderate Decline |
| Grey Heron | 47.6 | 4.5 | -40.4 | Moderate Decline |
| Cormorant | 49.0 | -31.8 | -33.6 | Moderate Decline |
| Ringed Plover | -39.7 | -54.8 | -31.9 | Moderate Decline |
| Greenshank | 8.0 | 4.9 | -24.5 | Intermediate Decline |
| Bar-tailed Godwit | 38.3 | -23.9 | -15.3 | Intermediate Decline |
| Wigeon | -5.7 | 11.2 | -12.9 | Intermediate Decline |
| Mallard | 38.1 | 26.1 | -6.5 | Intermediate Decline |
| Mute Swan | -2.4 | -26.8 | 2.5 | Stable or Increasing |
| Purple Sandpiper | 580.0 | -80.2 | 78.9 | Stable or Increasing |
| Redshank | 29.2 | 27.3 | 80.6 | Stable or Increasing |
| Black-tailed Godwit | -38.0 | 6.3 | 129.5 | Stable or Increasing |
| Turnstone | -67.0 | 57.1 | 175.0 | Stable or Increasing |
| Little Egret | 28.4 | -6.2 | 293.5 | Stable or Increasing |
Species Analysis
Mute Swan
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Rosscarbery | -2.4 | -26.8 | 2.5 |
| National | 4.6 | 9.6 | 13.8 |
Wigeon
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Rosscarbery | -5.7 | 11.2 | -12.9 |
| National | 0.9 | -17.0 | -18.2 |
Mallard
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Rosscarbery | 38.1 | 26.1 | -6.5 |
| National | -11.3 | -19.7 | -19.1 |
Teal
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Rosscarbery | 126.5 | 7.8 | -48.1 |
| National | 1.8 | 5.7 | 19.4 |
Red-breasted Merganser
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Rosscarbery | -40.7 | -71.1 | -87.6 |
| National | -12.9 | 5.2 | -14.7 |
Little Grebe
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Rosscarbery | -72.3 | -45.3 | -73.6 |
| National | 6.1 | 16.7 | 38.2 |
Oystercatcher
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Rosscarbery | -13.1 | -34.4 | -50.9 |
| National | -17.5 | -31.1 | 10.8 |
Lapwing
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Rosscarbery | -29.0 | -45.3 | -61.7 |
| National | -6.5 | -45.1 | -63.9 |
Golden Plover
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Rosscarbery | -74.5 | -80.0 | -82.3 |
| National | -16.9 | -58.1 | -54.1 |
Grey Plover
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Rosscarbery | -83.8 | -70.0 | -85.5 |
| National | -30.6 | -39.4 | -57.8 |
Ringed Plover
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Rosscarbery | -39.7 | -54.8 | -31.9 |
| National | -4.3 | -26.8 | -1.1 |
Curlew
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Rosscarbery | -33.0 | -41.7 | -54.7 |
| National | -9.4 | -23.7 | -43.1 |
Bar-tailed Godwit
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Rosscarbery | 38.3 | -23.9 | -15.3 |
| National | -32.6 | -13.9 | -5.1 |
Black-tailed Godwit
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Rosscarbery | -38.0 | 6.3 | 129.5 |
| National | 22.5 | 25.0 | 92.3 |
Turnstone
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Rosscarbery | -67.0 | 57.1 | 175.0 |
| National | -33.6 | -46.0 | -23.7 |
Knot
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Rosscarbery | -98.6 | -91.9 | -77.5 |
| National | 0.0 | -12.2 | -9.8 |
Dunlin
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Rosscarbery | -56.6 | -41.0 | -60.0 |
| National | 5.9 | -21.2 | -45.2 |
Purple Sandpiper
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Rosscarbery | 580.0 | -80.2 | 78.9 |
| National | -36.4 | -37.6 | 23.5 |
Redshank
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Rosscarbery | 29.2 | 27.3 | 80.6 |
| National | -14.0 | -28.4 | 6.7 |
Greenshank
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Rosscarbery | 8.0 | 4.9 | -24.5 |
| National | 0.9 | 7.3 | 41.0 |
Cormorant
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Rosscarbery | 49.0 | -31.8 | -33.6 |
| National | 38.5 | 8.4 | 42.9 |
Grey Heron
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Rosscarbery | 47.6 | 4.5 | -40.4 |
| National | 1.0 | -4.9 | 6.6 |
Little Egret
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Rosscarbery | 28.4 | -6.2 | 293.5 |
| 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)