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 An Trá Beg (site code 0K435) 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

Trend (%)
Species An Trá Beg - 5 Year An Trá Beg - 12 Year An Trá Beg - 23 Year Long Term Trend
Golden Plover -32.3 -53.9 -71.9 Large Decline
Dunlin 64.7 -15.2 -69.9 Large Decline
Little Grebe -82.5 -46.5 -68.1 Large Decline
Lapwing 52.2 -41.0 -59.0 Large Decline
Curlew -18.1 -33.1 -52.1 Large Decline
Cormorant 20.8 -24.7 -43.1 Moderate Decline
Grey Heron -19.0 -42.0 -43.0 Moderate Decline
Red-breasted Merganser -65.4 37.8 -31.1 Moderate Decline
Ringed Plover -11.3 -30.8 -11.3 Intermediate Decline
Redshank 2.1 -55.8 -11.0 Intermediate Decline
Oystercatcher -12.1 -39.6 -7.3 Intermediate Decline
Wigeon 32.2 19.8 0.0 Stable or Increasing
Turnstone -7.9 -14.7 3.6 Stable or Increasing
Greenshank 0.8 -16.1 17.9 Stable or Increasing
Mallard 78.6 45.3 22.5 Stable or Increasing
Sanderling 335.4 349.3 141.8 Stable or Increasing
Teal 384.4 171.9 192.5 Stable or Increasing
Little Egret 43.5 41.9 207.0 Stable or Increasing

Species Analysis

Wigeon

Trend (%)
Site 5 Year 12 Year 23 Year
An Trá Beg 32.2 19.8 0.0
National 0.9 -17.0 -18.2

Mallard

Trend (%)
Site 5 Year 12 Year 23 Year
An Trá Beg 78.6 45.3 22.5
National -11.3 -19.7 -19.1

Teal

Trend (%)
Site 5 Year 12 Year 23 Year
An Trá Beg 384.4 171.9 192.5
National 1.8 5.7 19.4

Red-breasted Merganser

Trend (%)
Site 5 Year 12 Year 23 Year
An Trá Beg -65.4 37.8 -31.1
National -12.9 5.2 -14.7

Little Grebe

Trend (%)
Site 5 Year 12 Year 23 Year
An Trá Beg -82.5 -46.5 -68.1
National 6.1 16.7 38.2

Oystercatcher

Trend (%)
Site 5 Year 12 Year 23 Year
An Trá Beg -12.1 -39.6 -7.3
National -17.5 -31.1 10.8

Lapwing

Trend (%)
Site 5 Year 12 Year 23 Year
An Trá Beg 52.2 -41.0 -59.0
National -6.5 -45.1 -63.9

Golden Plover

Trend (%)
Site 5 Year 12 Year 23 Year
An Trá Beg -32.3 -53.9 -71.9
National -16.9 -58.1 -54.1

Ringed Plover

Trend (%)
Site 5 Year 12 Year 23 Year
An Trá Beg -11.3 -30.8 -11.3
National -4.3 -26.8 -1.1

Curlew

Trend (%)
Site 5 Year 12 Year 23 Year
An Trá Beg -18.1 -33.1 -52.1
National -9.4 -23.7 -43.1

Turnstone

Trend (%)
Site 5 Year 12 Year 23 Year
An Trá Beg -7.9 -14.7 3.6
National -33.6 -46.0 -23.7

Sanderling

Trend (%)
Site 5 Year 12 Year 23 Year
An Trá Beg 335.4 349.3 141.8
National -23.8 -11.1 84.6

Dunlin

Trend (%)
Site 5 Year 12 Year 23 Year
An Trá Beg 64.7 -15.2 -69.9
National 5.9 -21.2 -45.2

Redshank

Trend (%)
Site 5 Year 12 Year 23 Year
An Trá Beg 2.1 -55.8 -11.0
National -14.0 -28.4 6.7

Greenshank

Trend (%)
Site 5 Year 12 Year 23 Year
An Trá Beg 0.8 -16.1 17.9
National 0.9 7.3 41.0

Cormorant

Trend (%)
Site 5 Year 12 Year 23 Year
An Trá Beg 20.8 -24.7 -43.1
National 38.5 8.4 42.9

Grey Heron

Trend (%)
Site 5 Year 12 Year 23 Year
An Trá Beg -19.0 -42.0 -43.0
National 1.0 -4.9 6.6

Little Egret

Trend (%)
Site 5 Year 12 Year 23 Year
An Trá Beg 43.5 41.9 207.0
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)