I-WeBS Maghery Lake 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 Maghery Lake (site code 0A006) 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 | Maghery Lake - 5 Year | Maghery Lake - 12 Year | Maghery Lake - 23 Year | Long Term Trend |
|---|---|---|---|---|
| Goldeneye | -53.8 | -69.0 | -79.9 | Large Decline |
| Mute Swan | -62.6 | -47.6 | -47.6 | Moderate Decline |
| Wigeon | -48.8 | 8.6 | -13.7 | Intermediate Decline |
| Mallard | -25.2 | 2.4 | -8.5 | Intermediate Decline |
| Cormorant | 89.7 | 45.1 | 72.1 | Stable or Increasing |
| Grey Heron | 42.9 | -6.2 | 361.5 | Stable or Increasing |
Species Analysis
Mute Swan
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Maghery Lake | -62.6 | -47.6 | -47.6 |
| National | 4.6 | 9.6 | 13.8 |
Wigeon
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Maghery Lake | -48.8 | 8.6 | -13.7 |
| National | 0.9 | -17.0 | -18.2 |
Mallard
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Maghery Lake | -25.2 | 2.4 | -8.5 |
| National | -11.3 | -19.7 | -19.1 |
Goldeneye
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Maghery Lake | -53.8 | -69.0 | -79.9 |
| National | -32.5 | -39.0 | -66.9 |
Cormorant
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Maghery Lake | 89.7 | 45.1 | 72.1 |
| National | 38.5 | 8.4 | 42.9 |
Grey Heron
| Site | 5 Year | 12 Year | 23 Year |
|---|---|---|---|
| Maghery Lake | 42.9 | -6.2 | 361.5 |
| 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)