The Effects of Management Practices on Grassland Birds—Northern Harrier (Circus hudsonius)

Professional Paper 1842-L
By: , and 



The key to Northern Harrier (Circus hudsonius) management is providing tall, dense vegetation in extensive mesic or xeric grasslands or in wetlands. Northern Harriers have been reported to use habitats with 15–106 centimeter (cm) average vegetation height, 28–75 cm visual obstruction reading, 24–53 percent grass cover, 18–25 percent forb cover, less than or equal to 2 percent shrub cover, 3–5 percent bare ground, 23–30 percent litter cover, and 2–6 cm litter depth.

Suggested Citation

Shaffer, J.A., Igl, L.D., Johnson, D.H., Sondreal, M.L., Goldade, C.M., Nenneman, M.P., Thiele, J.P., and Euliss, B.R., 2019, The effects of management practices on grassland birds—Northern Harrier (Circus hudsonius), chap. L of Johnson, D.H., Igl, L.D., Shaffer, J.A., and DeLong, J.P., eds., The effects of management practices on grassland birds: U.S. Geological Survey Professional Paper 1842, 11 p.,

ISSN: 2330-7102 (online)

Table of Contents

  • Acknowledgments
  • Capsule Statement
  • Breeding Range
  • Suitable Habitat
  • Prey Habitat
  • Area Requirements and Landscape Associations
  • Brood Parasitism by Cowbirds and Other Species
  • Breeding-Season Phenology and Site Fidelity
  • Species’ Response to Management
  • Management Recommendations from the Literature
  • References
Publication type Report
Publication Subtype USGS Numbered Series
Title The effects of management practices on grassland birds—Northern Harrier (Circus hudsonius)
Series title Professional Paper
Series number 1842
Chapter L
DOI 10.3133/pp1842L
Year Published 2019
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Contributing office(s) Northern Prairie Wildlife Research Center
Description iv, 11 p.
Online Only (Y/N) Y
Additional Online Files (Y/N) N
Google Analytic Metrics Metrics page
Additional publication details