I-WeBS Kilcolman Marsh 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 Kilcolman Marsh (site code 0L020) 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 | Kilcolman Marsh - 5 Year | Kilcolman Marsh - 12 Year | Kilcolman Marsh - 23 Year | Long Term Trend |
|---|---|---|---|---|
| Golden Plover | 425.0 | -24.3 | -88.8 | Large Decline |
| Lapwing | 124.1 | -52.9 | -87.1 | Large Decline |
| Pochard | 105.6 | -65.3 | -80.0 | Large Decline |
| Curlew | 103.4 | -37.9 | -77.0 | Large Decline |
| Gadwall | 96.7 | -79.2 | -76.6 | Large Decline |
| Coot | 107.4 | -48.6 | -70.4 | Large Decline |
| Mute Swan | 18.8 | -30.3 | -49.7 | Moderate Decline |
| Wigeon | 123.8 | -64.7 | -49.2 | Moderate Decline |
| Mallard | 31.0 | -63.5 | -48.6 | Moderate Decline |
| Pintail | 29.6 | 2.9 | -48.5 | Moderate Decline |
| Tufted Duck | 20.0 | -32.6 | -45.0 | Moderate Decline |
| Little Grebe | 24.2 | -22.6 | -40.1 | Moderate Decline |
| Teal | 6.7 | -59.6 | -36.0 | Moderate Decline |
| Shoveler | 95.7 | -55.4 | -18.9 | Intermediate Decline |
| Grey Heron | 24.7 | -36.1 | 60.6 | Stable or Increasing |
Species Analysis
Mute Swan
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Kilcolman Marsh | 18.8 | -30.3 | -49.7 |
| National | 4.6 | 9.6 | 13.8 |
Shoveler
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Kilcolman Marsh | 95.7 | -55.4 | -18.9 |
| National | 23.0 | -21.3 | -10.8 |
Gadwall
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Kilcolman Marsh | 96.7 | -79.2 | -76.6 |
| National | -26.5 | 4.3 | 24.4 |
Wigeon
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Kilcolman Marsh | 123.8 | -64.7 | -49.2 |
| National | 0.9 | -17.0 | -18.2 |
Mallard
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Kilcolman Marsh | 31.0 | -63.5 | -48.6 |
| National | -11.3 | -19.7 | -19.1 |
Pintail
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Kilcolman Marsh | 29.6 | 2.9 | -48.5 |
| National | -0.8 | -6.0 | -13.7 |
Teal
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Kilcolman Marsh | 6.7 | -59.6 | -36.0 |
| National | 1.8 | 5.7 | 19.4 |
Pochard
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Kilcolman Marsh | 105.6 | -65.3 | -80.0 |
| National | -19.8 | -60.4 | -79.1 |
Tufted Duck
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Kilcolman Marsh | 20.0 | -32.6 | -45.0 |
| National | -20.7 | -28.9 | -17.9 |
Coot
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Kilcolman Marsh | 107.4 | -48.6 | -70.4 |
| National | -10.1 | 1.1 | -23.2 |
Little Grebe
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Kilcolman Marsh | 24.2 | -22.6 | -40.1 |
| National | 6.1 | 16.7 | 38.2 |
Lapwing
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Kilcolman Marsh | 124.1 | -52.9 | -87.1 |
| National | -6.5 | -45.1 | -63.9 |
Golden Plover
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Kilcolman Marsh | 425.0 | -24.3 | -88.8 |
| National | -16.9 | -58.1 | -54.1 |
Curlew
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Kilcolman Marsh | 103.4 | -37.9 | -77.0 |
| National | -9.4 | -23.7 | -43.1 |
Grey Heron
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Kilcolman Marsh | 24.7 | -36.1 | 60.6 |
| National | 1.0 | -4.9 | 6.6 |
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)