@misc{indiciaeb9786e11bfe1,
  title = {Cowbird parasitism in grassland and cropland in the northern Great Plains},
  author = {Rolf R. Koford and B. S. Bowen and John T. Lokemoen and Arnold D. Kruse},
  year = {2000},
  url = {https://pubs.usgs.gov/publication/85403},
  note = {Source identifier: 85403}
}