@misc{indiciae27484d753b91,
  title = {Availability of nest cavity trees for wood ducks (Aix sponsa) at Sunkhaze Meadows National Wildlife Refuge, Maine},
  author = {D.A. Clugston},
  year = {1999},
  url = {https://pubs.usgs.gov/publication/5223929},
  note = {Source identifier: 5223929}
}