Yellow-headed blackbirds in Illinois :
2000 Annual report, final report September 2000 /
prepared by Michael P. Ward, david A. Estrom, James Herket.

APA Citation

Ward, M. P., Herkert, J. R., Enstrom, D. A., Illinois Conservation Foundation., Illinois. Natural History Survey Division. Center for Biodiversity. (2000). Yellow-headed blackbirds in Illinois: 2000 Annual report, final report September 2000. Champaign, Ill.: Illinois Natural History Survey, Center for Biodiversity.

MLA Citation

Illinois. Natural History Survey Division. Center for Biodiversity, et al.. Yellow-headed Blackbirds In Illinois: 2000 Annual Report, Final Report September 2000. Champaign, Ill.: Illinois Natural History Survey, Center for Biodiversity, 2000.