Study

Planted grains provide greater nest protection than alfalfa, irrigation ditch vegetation or natural cover types

  • Published source details Jones R.E. & Hungerford K.E. (1972) Evaluation of Nesting Cover as Protection from Magpie Predation. The Journal of Wildlife Management, 36, 727-732

Actions

This study is summarised as evidence for the following.

Action Category

Plant wild bird seed or cover mixture

Action Link
Bird Conservation
  1. Plant wild bird seed or cover mixture

    A replicated, controlled study from May-June in 1955-1958 in three treatment cover types and six natural (control) cover types in Idaho, USA (Jones & Hungerford 1972), found that artificial nests in some cover crops were less likely to be predated than those in other crops. Over ten days, 30% of nests in cereal crops or cattail Typha angustifolia, bulrush Scirpuss acutus or S. validus margins were predated, compared with 40% in alfalfa Medicago sativa and 80% in tall weeds, willows Salix spp., sagebrush Artemisia tridentate or downy chess Bromus tectorum. Overall, 52% of nests were destroyed within 10 days. Grain fields provided significantly greater protection (average ten ‘safe’ days and only 3% nests destroyed) compared to alfalfa and irrigation ditches (average of seven and five ‘safe’ days) or any control cover types. A total of 529 nests, each containing four eggs were placed randomly in cover types (32-68 nests/cover type).

     

Output references

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