Cattle grazing in a national forest greatly reduces nesting success in a ground-nesting sparrow

  • Published source details Walsberg G.E. (2005) Cattle grazing in a national forest greatly reduces nesting success in a ground-nesting sparrow. The Condor, 107, 714-716.


This study is summarised as evidence for the following.

Action Category

Exclude grazers from semi-natural habitats

Action Link
Bird Conservation
  1. Exclude grazers from semi-natural habitats

    A study in May-July of 2000 and 2001 in Kaibab National Forest, Arizona, USA (Walsberg 2005), observed significantly higher fledging success rates of ground-nesting dark-eyed Juncos Junco hyemalis breeding in areas not grazed by cattle (48% of 21 nests) than in immediately adjacent, grazed areas (12% of 17 nests).  The authors suggest that reduced nest cover may expose nests to more extreme climatic conditions and make them more conspicuous to predators.


Output references
What Works 2021 cover

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, 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 the latest volume: Volume 21

Go to the CE Journal

Discover more on our blog

Our blog contains the latest news and updates from the Conservation Evidence team, the Conservation Evidence Journal, and our global partners in evidence-based conservation.

Who uses Conservation Evidence?

Meet some of the evidence champions

Endangered Landscape ProgrammeRed List Champion - Arc Kent Wildlife Trust The Rufford Foundation Save the Frogs - Ghana Mauritian Wildlife Supporting Conservation Leaders
Sustainability Dashboard National Biodiversity Network Frog Life The international journey of Conservation - Oryx Cool Farm Alliance UNEP AWFA Bat Conservation InternationalPeople trust for endangered species Vincet Wildlife Trust