I-WeBS Adrigole Harbour 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 Adrigole Harbour (site code 0L907) 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 | Adrigole Harbour - 5 Year | Adrigole Harbour - 12 Year | Adrigole Harbour - 23 Year | Long Term Trend |
|---|---|---|---|---|
| Little Grebe | -79.0 | 48.4 | -26.6 | Moderate Decline |
| Mute Swan | -9.8 | -39.9 | -16.8 | Intermediate Decline |
| Red-breasted Merganser | -27.1 | -7.1 | -16.1 | Intermediate Decline |
| Curlew | -8.8 | 64.6 | -10.0 | Intermediate Decline |
| Grey Heron | -17.3 | -13.4 | -9.1 | Intermediate Decline |
| Wigeon | 3.6 | 9.2 | -5.9 | Intermediate Decline |
| Mallard | -0.9 | -1.7 | -4.1 | Intermediate Decline |
| Cormorant | -10.9 | -26.3 | -1.0 | Intermediate Decline |
| Redshank | -38.0 | -18.9 | 1.6 | Stable or Increasing |
| Greenshank | -15.3 | 30.9 | 4.3 | Stable or Increasing |
| Oystercatcher | -12.1 | -30.6 | 31.3 | Stable or Increasing |
| Little Egret | 10.7 | -1.7 | 375.0 | Stable or Increasing |
Species Analysis
Mute Swan
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Adrigole Harbour | -9.8 | -39.9 | -16.8 |
| National | 4.6 | 9.6 | 13.8 |
Wigeon
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Adrigole Harbour | 3.6 | 9.2 | -5.9 |
| National | 0.9 | -17.0 | -18.2 |
Mallard
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Adrigole Harbour | -0.9 | -1.7 | -4.1 |
| National | -11.3 | -19.7 | -19.1 |
Red-breasted Merganser
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Adrigole Harbour | -27.1 | -7.1 | -16.1 |
| National | -12.9 | 5.2 | -14.7 |
Little Grebe
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Adrigole Harbour | -79.0 | 48.4 | -26.6 |
| National | 6.1 | 16.7 | 38.2 |
Oystercatcher
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Adrigole Harbour | -12.1 | -30.6 | 31.3 |
| National | -17.5 | -31.1 | 10.8 |
Curlew
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Adrigole Harbour | -8.8 | 64.6 | -10.0 |
| National | -9.4 | -23.7 | -43.1 |
Redshank
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Adrigole Harbour | -38.0 | -18.9 | 1.6 |
| National | -14.0 | -28.4 | 6.7 |
Greenshank
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Adrigole Harbour | -15.3 | 30.9 | 4.3 |
| National | 0.9 | 7.3 | 41.0 |
Cormorant
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Adrigole Harbour | -10.9 | -26.3 | -1.0 |
| National | 38.5 | 8.4 | 42.9 |
Grey Heron
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Adrigole Harbour | -17.3 | -13.4 | -9.1 |
| National | 1.0 | -4.9 | 6.6 |
Little Egret
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Adrigole Harbour | 10.7 | -1.7 | 375.0 |
| 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)