Action

Action Synopsis: Bird Conservation About Actions

Provide nesting habitat for birds that is safe from extreme weather

How is the evidence assessed?
  • Effectiveness
    28%
  • Certainty
    23%
  • Harms
    0%

Source countries

Key messages

  • A small from New Zealand found Chatham Island oystercatchers Haematopus chathamensis used raised nest platforms made from car tyres (designed to raise nests above the level of storm surges). The success of these nests is not reported.
  • Two replicated, controlled studies from the USA found that the nesting success of terns and waders was no higher on specially raised areas of nesting substrate, compared to unraised areas, with one study finding that a similar proportion of nests were lost to flooding in raised and unraised areas.

 

About key messages

Key messages provide a descriptive index to studies we have found that test this intervention.

Studies are not directly comparable or of equal value. When making decisions based on this evidence, you should consider factors such as study size, study design, reported metrics and relevance of the study to your situation, rather than simply counting the number of studies that support a particular interpretation.

Supporting evidence from individual studies

  1. A replicated, controlled trial in on alkaline flats in Oklahoma, USA, between 1991 and 1994 (Koenen et al. 1996), found that nesting success of least terns Sterna antillarum and snowy plovers Charadrius alexandrinus was not higher on nesting ridges designed to protect nests from flooding, compared to nests not on ridges (terns: 53% of 32 nests on ridges vs. 53% of 28 nests off ridges; plovers: 79% of 22 nests on ridges vs. 62% of 26 nests off ridges). The proportions of nests lost to flooding were similar on and off the ridges for both species. This study is also discussed in ‘Protect bird nests using electric fencing’.

    Study and other actions tested
  2. A randomised, replicated and controlled paired study on three saltmarsh islands in Virginia, USA, in 2002 (Rounds et al. 2004) found that hatching success of four ground-nesting bird species (American oystercatchers Haematopus palliatus, common terns Sterna hirundo gull-billed terns S. nilotica, and black skimmers Rynchops niger) was no higher sections of oyster shell piles artificially raised by 15-20 cm than on control (unraised) areas of piles (common terns: 60% of 15 nests hatching at least one egg on raised areas vs. 42% of 26 on control areas; gull-billed terns: 62% of 13 nests on raised areas vs. 89% of nine on control areas). Too few oystercatchers or skimmers nested for comparisons to be made. No species showed a significant preference for either raised or control areas. The authors note that whilst there were no significant differences between hatching successes, raised nests at three of the five shell piles studied survived flooding whilst unraised nests did not.

    Study and other actions tested
  3. A small study on Chatham Island, New Zealand between 1998 and 2004 (Moore & Williams 2005) found that up to seven pairs of Chatham Island oystercatcher Haematopus chathamensis used raised nest platforms made from car tyres (designed to raise nests above the level of storm surges). The success of these nests is not reported. The effect of moving the nests up the beach is discussed in ‘Move nests whilst birds are using them’.

    Study and other actions tested
Please cite as:

Williams, D.R., Child, M.F., Dicks, L.V., Ockendon, N., Pople, R.G., Showler, D.A., Walsh, J.C., zu Ermgassen, E.K.H.J. & Sutherland, W.J. (2019) Bird Conservation. Pages 141-290 in: W.J. Sutherland, L.V. Dicks, N. Ockendon, S.O. Petrovan & R.K. Smith (eds) What Works in Conservation 2019. Open Book Publishers, Cambridge, UK.

 

Where has this evidence come from?

List of journals searched by synopsis

All the journals searched for all synopses

Bird Conservation

This Action forms part of the Action Synopsis:

Bird Conservation

What Works in Conservation

What Works in Conservation provides expert assessments of the effectiveness of actions, based on summarised evidence, in synopses. Subjects covered so far include amphibians, birds, terrestrial mammals, forests, peatland and control of freshwater invasive species. More are in progress.

More about What Works in Conservation

Download free PDF or purchase
The Conservation Evidence Journal

The Conservation Evidence Journal

An online, free to publish in, open-access journal publishing results from research and projects that test the effectiveness of conservation actions.

Read latest volume: Volume 17

Go to the CE Journal

Subscribe to our newsletter

Please add your details if you are interested in receiving updates from the Conservation Evidence team about new papers, synopses and opportunities.

Who uses Conservation Evidence?

Meet some of the evidence champions

Endangered Landscape Programme Red List Champion - Arc Kent Wildlife Trust The Rufford Foundation Save the Frogs - Ghana Bern wood Supporting Conservation Leaders National Biodiversity Network Sustainability Dashboard Frog Life The international journey of Conservation - Oryx British trust for ornithology Cool Farm Alliance UNEP AWFA Butterfly Conservation People trust for endangered species Vincet Wildlife Trust