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A Common Loon incubates rocks as surrogates for eggs

January 1, 2013

A nesting Gavia immer (Common Loon) was discovered incubating 2 rocks on a floating nest platform on the Quabbin reservoir in central Massachusetts for 43 days, well beyond the typical period of 28 days, before we moved in to investigate. The rocks were likely unearthed in the soil and vegetation used on the platform to create a more natural substrate for the nest. We suggest sifting through soil and vegetation to remove rocks before placing material on nest platforms.

Publication Year 2013
Title A Common Loon incubates rocks as surrogates for eggs
DOI 10.1656/045.020.0111
Authors Stephen DeStefano, Kiana K. G. Koenen, Jillian W. Pereira
Publication Type Article
Publication Subtype Journal Article
Series Title Northeastern Naturalist
Index ID 70173760
Record Source USGS Publications Warehouse
USGS Organization Coop Res Unit Leetown