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Providing evidence to improve practice

Individual study: Use of wooden nest structures by common eider Somateria mollissima nesting on Seahorse Island, Alaska, USA

Published source details

Divoky G.J. & Suydam R. (1995) An artificial nest site for arctic nesting common eiders. Journal of Field Ornithology, 66, 270-276

This study is summarised as evidence for the intervention(s) shown on the right. The icon shows which synopsis it is relevant to.

Provide artificial nesting sites for wildfowl Bird Conservation

A small trial on dunes on an island in northern Alaska, USA, in 1992-3 (Divoky & Suydam 1995), found that 16 out of 20 nesting structures provided for common eiders Somateria mollissima were destroyed the year after installation, but that the remaining four provided seven potential nest sites, of which three (in two structures) were used, hatching at least one egg successfully. The structures consisted of a wooden cross providing four uncovered, semi-sheltered nesting quadrants protected on two sides by 20 x 61 cm boards. All three nests were in the south-facing quadrants.