I-WeBS South Mayo Coast 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 South Mayo Coast (site code 0D406) 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 | South Mayo Coast - 5 Year | South Mayo Coast - 12 Year | South Mayo Coast - 23 Year | Long Term Trend |
|---|---|---|---|---|
| Golden Plover | -38.1 | -85.1 | -70.1 | Large Decline |
| Shelduck | -7.3 | -54.2 | -55.2 | Large Decline |
| Tufted Duck | -40.0 | -68.5 | -42.7 | Moderate Decline |
| Lapwing | 37.0 | -36.4 | -6.0 | Intermediate Decline |
| Curlew | 20.8 | -31.2 | -1.5 | Intermediate Decline |
| Red-breasted Merganser | 15.6 | -37.3 | 2.5 | Stable or Increasing |
| Dunlin | 18.4 | -22.7 | 18.4 | Stable or Increasing |
| Turnstone | 136.4 | 48.6 | 20.9 | Stable or Increasing |
| Mallard | 24.6 | -6.2 | 31.0 | Stable or Increasing |
| Redshank | -43.4 | -63.1 | 36.7 | Stable or Increasing |
| Teal | -9.9 | -32.4 | 51.5 | Stable or Increasing |
| Mute Swan | 59.6 | -23.5 | 53.1 | Stable or Increasing |
| Cormorant | -27.9 | -60.0 | 63.0 | Stable or Increasing |
| Ringed Plover | 20.6 | -20.0 | 85.4 | Stable or Increasing |
| Wigeon | 35.1 | 4.0 | 85.7 | Stable or Increasing |
| Grey Heron | 84.4 | -35.9 | 118.5 | Stable or Increasing |
| Oystercatcher | 13.0 | -10.3 | 177.3 | Stable or Increasing |
| Little Grebe | 18.2 | 85.7 | 225.0 | Stable or Increasing |
| Sanderling | 25.5 | 40.8 | 392.9 | Stable or Increasing |
| Little Egret | 14500.0 | NA | NA | Not Applicable |
Species Analysis
Mute Swan
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| South Mayo Coast | 59.6 | -23.5 | 53.1 |
| National | 4.6 | 9.6 | 13.8 |
Shelduck
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| South Mayo Coast | -7.3 | -54.2 | -55.2 |
| National | 6.3 | -0.8 | 9.3 |
Wigeon
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| South Mayo Coast | 35.1 | 4.0 | 85.7 |
| National | 0.9 | -17.0 | -18.2 |
Mallard
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| South Mayo Coast | 24.6 | -6.2 | 31.0 |
| National | -11.3 | -19.7 | -19.1 |
Teal
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| South Mayo Coast | -9.9 | -32.4 | 51.5 |
| National | 1.8 | 5.7 | 19.4 |
Tufted Duck
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| South Mayo Coast | -40.0 | -68.5 | -42.7 |
| National | -20.7 | -28.9 | -17.9 |
Red-breasted Merganser
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| South Mayo Coast | 15.6 | -37.3 | 2.5 |
| National | -12.9 | 5.2 | -14.7 |
Little Grebe
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| South Mayo Coast | 18.2 | 85.7 | 225.0 |
| National | 6.1 | 16.7 | 38.2 |
Oystercatcher
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| South Mayo Coast | 13.0 | -10.3 | 177.3 |
| National | -17.5 | -31.1 | 10.8 |
Lapwing
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| South Mayo Coast | 37.0 | -36.4 | -6.0 |
| National | -6.5 | -45.1 | -63.9 |
Golden Plover
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| South Mayo Coast | -38.1 | -85.1 | -70.1 |
| National | -16.9 | -58.1 | -54.1 |
Ringed Plover
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| South Mayo Coast | 20.6 | -20.0 | 85.4 |
| National | -4.3 | -26.8 | -1.1 |
Curlew
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| South Mayo Coast | 20.8 | -31.2 | -1.5 |
| National | -9.4 | -23.7 | -43.1 |
Turnstone
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| South Mayo Coast | 136.4 | 48.6 | 20.9 |
| National | -33.6 | -46.0 | -23.7 |
Sanderling
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| South Mayo Coast | 25.5 | 40.8 | 392.9 |
| National | -23.8 | -11.1 | 84.6 |
Dunlin
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| South Mayo Coast | 18.4 | -22.7 | 18.4 |
| National | 5.9 | -21.2 | -45.2 |
Redshank
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| South Mayo Coast | -43.4 | -63.1 | 36.7 |
| National | -14.0 | -28.4 | 6.7 |
Cormorant
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| South Mayo Coast | -27.9 | -60.0 | 63.0 |
| National | 38.5 | 8.4 | 42.9 |
Grey Heron
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| South Mayo Coast | 84.4 | -35.9 | 118.5 |
| National | 1.0 | -4.9 | 6.6 |
Little Egret
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| South Mayo Coast | 14500.0 | NA | NA |
| 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)