@misc{indiciae2e0eadc4ff5f,
  title = {DDE not implicated in cliff swallow, Petrochelidon pyrrhonota, mortality during severe spring weather in Oregon},
  author = {Charles J. Henny and L. J. Blus and C. J. Stafford},
  year = {1982},
  url = {https://pubs.usgs.gov/publication/5221780},
  note = {Source identifier: 5221780}
}