@misc{indiciae9f5a4da966de,
  title = {Does increasing daylength control seasonal changes in clutch sizes of Northern Pintails ( Anas acuta )?},
  author = {Gary L. Krapu and G.A. Sargeant and A.E.H. Perkins},
  year = {2002},
  doi = {10.1642/0004-8038(2002)119[0498:didcsc]2.0.co;2},
  url = {https://pubs.usgs.gov/publication/70024995},
  note = {Source identifier: 70024995}
}