Conservation of marine birds of northern North America: / papers from the international symposium held at the Seattle Hyatt House

by Unknown

FOOTNOTES:

[41] Common eider, 2 to 7 h.

[42] No data given.

[43] Indirect evidence that young are brooded this long.

[44] Data from Lack (1968) and Ashmole (1971) unless otherwise noted.

[45] Cullen (1957).

[46] Birkhead (1974).

[47] Speich and Manuwal (1974).

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