Simultaneous Incubation by Two Females and Nestling Provisioning by Four Adults at a Savannah Sparrow Nest

Nathan J. Zalik; Noah G. Perlut

doi:10.1676/07-129.1

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Nathan J. Zalik,^* Noah G. Perlut^*,**,***

^*The Rubenstein School of Environment and Natural Resources, 81 Carrigan Drive, University of Vermont, Burlington, VT 05405, USA
^**Vermont Cooperative Fish and Wildlife Research Unit, 81 Carrigan Drive, University of Vermont, Burlington, VT 05405, USA
^***Corresponding author; nperlut@uvm.edu

Abstract

We present the first observations of misdirected parental care by Savannah Sparrows (Passerculus sandwichensis) including a rare occurrence of simultaneous incubation. Two females simultaneously incubated eggs, brooded, and fed nestlings, and two males fed nestlings in one nest. These behaviors may have been prompted by strong parental instincts in combination with a stressful breeding environment mediated by hayfield management, as any genetic benefits were unlikely.

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Nathan J. Zalik and Noah G. Perlut "Simultaneous Incubation by Two Females and Nestling Provisioning by Four Adults at a Savannah Sparrow Nest," The Wilson Journal of Ornithology 120(3), 628-630, (1 September 2008). https://doi.org/10.1676/07-129.1

Received: 1 September 2007; Accepted: 1 October 2007; Published: 1 September 2008

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