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 Killineer Quarry, Drogheda (site code 0Z201) 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 Killineer Quarry, Drogheda - 5 Year Killineer Quarry, Drogheda - 12 Year Killineer Quarry, Drogheda - 23 Year Long Term Trend
Pochard 111.4 -68.2 -61.2 Large Decline
Coot 74.7 -19.0 -22.1 Intermediate Decline
Great Crested Grebe 17.0 -47.0 -3.9 Intermediate Decline
Mute Swan 71.7 13.2 0.0 Stable or Increasing
Mallard 191.9 -5.3 12.5 Stable or Increasing
Tufted Duck -11.4 -35.8 25.0 Stable or Increasing
Little Grebe 126.2 3.3 26.7 Stable or Increasing
Grey Heron 3.2 51.6 27.6 Stable or Increasing
Cormorant 77.8 100.0 28.0 Stable or Increasing

Species Analysis

Mute Swan

Trend (%)
Site 5 Year 12 Year 23 Year
Killineer Quarry, Drogheda 71.7 13.2 0.0
National 4.6 9.6 13.8

Mallard

Trend (%)
Site 5 Year 12 Year 23 Year
Killineer Quarry, Drogheda 191.9 -5.3 12.5
National -11.3 -19.7 -19.1

Pochard

Trend (%)
Site 5 Year 12 Year 23 Year
Killineer Quarry, Drogheda 111.4 -68.2 -61.2
National -19.8 -60.4 -79.1

Tufted Duck

Trend (%)
Site 5 Year 12 Year 23 Year
Killineer Quarry, Drogheda -11.4 -35.8 25.0
National -20.7 -28.9 -17.9

Coot

Trend (%)
Site 5 Year 12 Year 23 Year
Killineer Quarry, Drogheda 74.7 -19.0 -22.1
National -10.1 1.1 -23.2

Little Grebe

Trend (%)
Site 5 Year 12 Year 23 Year
Killineer Quarry, Drogheda 126.2 3.3 26.7
National 6.1 16.7 38.2

Great Crested Grebe

Trend (%)
Site 5 Year 12 Year 23 Year
Killineer Quarry, Drogheda 17.0 -47.0 -3.9
National -39.5 -6.1 -10.8

Cormorant

Trend (%)
Site 5 Year 12 Year 23 Year
Killineer Quarry, Drogheda 77.8 100.0 28.0
National 38.5 8.4 42.9

Grey Heron

Trend (%)
Site 5 Year 12 Year 23 Year
Killineer Quarry, Drogheda 3.2 51.6 27.6
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)