A Second brood in Canada Geese Branta canadensis?

Authors

  • Charlotte Berg Department of Animal Environment and Health, Swedish University of Agricultural Sciences
  • Henrik Lerner Department of Health Care Sciences, Ersta Sköndal University College

DOI:

https://doi.org/10.34080/os.v24.22565

Keywords:

breeding success, brood size, breeding biology, behaviour

Abstract

Canada Geese Branta canadensis do normally not produce more than one clutch per year. On the island of Nidingen off the west coast of Sweden a pair of Canada Geese successfully reared one early brood of young in the spring (2 and 8 young respectively in 2011 and 2012). Apparently the same pair in both years, approximately 35–40 days after hatching the first brood, laid a second batch of eggs in the same nest. In this paper, these events are described in detail and alternative explanations are discussed. No indications of adoption of young or change of partner in the couple could be identified; hence the hypothesis of a true second brood remains strong.

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Published

2014-01-01

How to Cite

Berg, C., & Lerner, H. (2014). A Second brood in Canada Geese Branta canadensis?. Ornis Svecica, 24(1–2), 51–55. https://doi.org/10.34080/os.v24.22565

Issue

Section

Research Papers