@misc{indiciae14ba7a63bec1,
  title = {Copulation and mate guarding in the Northern Fulmar},
  author = {Scott A. Hatch},
  year = {1987},
  doi = {10.2307/4087544},
  url = {https://pubs.usgs.gov/publication/70185102},
  note = {Source identifier: 70185102}
}