Lawrence D. Igl, Ph.D.

Igl, L. D., D. H. Johnson, and H. A. Kantrud.  2008.  A historical perspective: changes in grassland breeding bird densities within major habitats in North Dakota between 1967 and 1992-1993.  Pages 275–295 in J. T. Springer and E. C. Springer (editors), Prairie invaders: proceedings of the 20th North American Prairie Conference. University of Nebraska at Kearney, Kearney, Nebraska.

Igl, L. D., and D. H. Johnson.  2007.  Brown-headed Cowbird, Molothrus ater, parasitism and abundance in the northern Great Plains.  Canadian Field-Naturalist 121:239–255.

Hahn, D. C., J. S. Hatfield, M. Abdelnabi, J. Wu, L. D. Igl, and M. A. Ottinger. 2005.  Hormonal basis for cowbird exploitation of hosts.  Journal of Avian Biology 36:40-46.

Igl, L. D., and D. H. Johnson.  2005.  A retrospective perspective: evaluating population changes by revisiting historic bird surveys.  Pages 817-830 in Bird Conservation Implementation and Integration in the Americas: Proceedings of the Third International Partners in Flight Conference 2002 (C.J. Ralph and T.D. Rich, editors).  U.S.D.A. Forest Service, GTR-PSW-191, Albany, California.

Igl, L. D., and R. E. Martin.  2002.  Records of Northern Mockingbird, Mimus polyglottos, occurrences in North Dakota during the twentieth century.  Canadian Field-Naturalist 116:87-97.

Johnson, D. H., and L. D. Igl.  2001.  Area requirements of grassland birds: a regional perspective.  Auk 118:24-34.

Igl, L. D., and B. M. Ballard.  1999.  Habitat associations of migrating and overwintering grassland birds in southern Texas.  Condor 101:771-782.

Igl, L. D., and D. H. Johnson.  1999.  Le Conte's Sparrows breeding in Conservation Reserve Program fields: precipitation and patterns of population change.  Studies in Avian Biology 19:178-186.

Igl, L. D., and D. H. Johnson.  1997.  Changes in breeding bird populations in North Dakota: 1967 to 1992-93.  Auk 114:74-92.

Igl, L. D., and D. H. Johnson. August 2010. Home on the Range: patterns of habitat use by male and female Brown-headed Cowbirds in their historical breeding range. North American Prairie Conference, Cedar Falls, Iowa.

Igl, L. D., and D. H. Johnson. August 2010. To hay or not to hay: short- and long-term effects of haying on breeding bird populations in CRP grasslands in the northern Great Plains. North American Prairie Conference, Cedar Falls, Iowa.

Igl, L. D., and D. H. Johnson. July 2010. Grassland bird use of Conservation Reserve Program fields in the Great Plains and Interior Lowlands: a long-term, regional perspective. Grassland Bird Workshop, U.S. Fish and Wildlife Service, Morris, Minnesota. (Invited presentation)

Igl, L. D., and D. H. Johnson. March 2010. Managing CRP grasslands: Long- and short-term responses of breeding birds in the northern Great Plains. Soil and Range Sciences Seminar Series, School of Natural Resource Sciences, North Dakota State University, Fargo, North Dakota. (Invited presentation)

Igl, L. D., and D. H. Johnson. February 2010. The total-area count as an alternative method to survey breeding birds in grasslands. Annual meeting of the North Dakota Chapter of The Wildlife Society, Mandan, North Dakota.

Martin, R. E., L. D. Igl, and D. N. Svingen. February 2010. An update of the checklist of North Dakota birds. Annual meeting of the North Dakota Chapter of The Wildlife Society, Mandan, North Dakota.