I-WeBS Baldoyle Bay 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 Baldoyle Bay (site code 0U403) 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 | Baldoyle Bay - 5 Year | Baldoyle Bay - 12 Year | Baldoyle Bay - 23 Year | Long Term Trend |
|---|---|---|---|---|
| Pintail | -53.3 | -90.2 | -88.3 | Large Decline |
| Grey Plover | -50.5 | -60.3 | -83.9 | Large Decline |
| Great Crested Grebe | -88.0 | -72.3 | -80.5 | Large Decline |
| Golden Plover | -77.5 | -67.2 | -80.1 | Large Decline |
| Turnstone | -17.5 | -76.5 | -66.7 | Large Decline |
| Bar-tailed Godwit | -55.4 | -44.7 | -66.5 | Large Decline |
| Dunlin | -57.2 | -21.1 | -65.3 | Large Decline |
| Lapwing | -9.8 | -38.3 | -62.3 | Large Decline |
| Red-breasted Merganser | -28.2 | -70.7 | -59.2 | Large Decline |
| Cormorant | 0.0 | -51.4 | -48.9 | Moderate Decline |
| Grey Heron | -8.0 | -40.7 | -45.4 | Moderate Decline |
| Redshank | -4.2 | -62.7 | -38.7 | Moderate Decline |
| Light-bellied Brent Goose | -32.6 | -51.0 | -23.0 | Intermediate Decline |
| Greenshank | 87.5 | -38.1 | 0.0 | Stable or Increasing |
| Curlew | 69.0 | -19.3 | 12.7 | Stable or Increasing |
| Teal | 1.2 | -24.1 | 24.2 | Stable or Increasing |
| Oystercatcher | -1.8 | -20.6 | 28.6 | Stable or Increasing |
| Shelduck | 81.6 | -43.7 | 32.8 | Stable or Increasing |
| Mallard | 38.7 | -52.9 | 33.6 | Stable or Increasing |
| Wigeon | 53.9 | -32.2 | 67.0 | Stable or Increasing |
| Knot | -15.3 | 146.7 | 73.4 | Stable or Increasing |
| Mute Swan | 221.4 | 4400.0 | 80.0 | Stable or Increasing |
| Black-tailed Godwit | 6.0 | 86.0 | 171.8 | Stable or Increasing |
| Little Egret | 65.9 | -32.9 | 420.7 | Stable or Increasing |
Species Analysis
Light-bellied Brent Goose
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Baldoyle Bay | -32.6 | -51.0 | -23.0 |
| National | -11.2 | 1.2 | 93.3 |
Mute Swan
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Baldoyle Bay | 221.4 | 4400.0 | 80.0 |
| National | 4.6 | 9.6 | 13.8 |
Shelduck
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Baldoyle Bay | 81.6 | -43.7 | 32.8 |
| National | 6.3 | -0.8 | 9.3 |
Wigeon
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Baldoyle Bay | 53.9 | -32.2 | 67.0 |
| National | 0.9 | -17.0 | -18.2 |
Mallard
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Baldoyle Bay | 38.7 | -52.9 | 33.6 |
| National | -11.3 | -19.7 | -19.1 |
Pintail
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Baldoyle Bay | -53.3 | -90.2 | -88.3 |
| National | -0.8 | -6.0 | -13.7 |
Teal
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Baldoyle Bay | 1.2 | -24.1 | 24.2 |
| National | 1.8 | 5.7 | 19.4 |
Red-breasted Merganser
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Baldoyle Bay | -28.2 | -70.7 | -59.2 |
| National | -12.9 | 5.2 | -14.7 |
Great Crested Grebe
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Baldoyle Bay | -88.0 | -72.3 | -80.5 |
| National | -39.5 | -6.1 | -10.8 |
Oystercatcher
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Baldoyle Bay | -1.8 | -20.6 | 28.6 |
| National | -17.5 | -31.1 | 10.8 |
Lapwing
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Baldoyle Bay | -9.8 | -38.3 | -62.3 |
| National | -6.5 | -45.1 | -63.9 |
Golden Plover
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Baldoyle Bay | -77.5 | -67.2 | -80.1 |
| National | -16.9 | -58.1 | -54.1 |
Grey Plover
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Baldoyle Bay | -50.5 | -60.3 | -83.9 |
| National | -30.6 | -39.4 | -57.8 |
Curlew
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Baldoyle Bay | 69.0 | -19.3 | 12.7 |
| National | -9.4 | -23.7 | -43.1 |
Bar-tailed Godwit
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Baldoyle Bay | -55.4 | -44.7 | -66.5 |
| National | -32.6 | -13.9 | -5.1 |
Black-tailed Godwit
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Baldoyle Bay | 6.0 | 86.0 | 171.8 |
| National | 22.5 | 25.0 | 92.3 |
Turnstone
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Baldoyle Bay | -17.5 | -76.5 | -66.7 |
| National | -33.6 | -46.0 | -23.7 |
Knot
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Baldoyle Bay | -15.3 | 146.7 | 73.4 |
| National | 0.0 | -12.2 | -9.8 |
Dunlin
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Baldoyle Bay | -57.2 | -21.1 | -65.3 |
| National | 5.9 | -21.2 | -45.2 |
Redshank
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Baldoyle Bay | -4.2 | -62.7 | -38.7 |
| National | -14.0 | -28.4 | 6.7 |
Greenshank
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Baldoyle Bay | 87.5 | -38.1 | 0.0 |
| National | 0.9 | 7.3 | 41.0 |
Cormorant
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Baldoyle Bay | 0.0 | -51.4 | -48.9 |
| National | 38.5 | 8.4 | 42.9 |
Grey Heron
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Baldoyle Bay | -8.0 | -40.7 | -45.4 |
| National | 1.0 | -4.9 | 6.6 |
Little Egret
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Baldoyle Bay | 65.9 | -32.9 | 420.7 |
| 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)