@misc{indiciaec348b78ecfc8,
  title = {Variation in incubation periods and egg metabolism in mallards: Intrinsic mechanisms to promote hatch synchrony},
  author = {Margaret C. MacCluskie and Paul L. Flint and James S. Sedinger},
  year = {1997},
  doi = {10.2307/1370245},
  url = {https://pubs.usgs.gov/publication/70182057},
  note = {Source identifier: 70182057}
}