New insights from old eggs – the shape and thickness of Great Auk Pinguinus impennis eggs

• Published in: Ibis
• Main Authors: Birkhead, Tim, Russell, Douglas, Garbout, Amin, Attard, Marie, Thompson, Jamie, Jackson, Duncan
• Other Authors: Leverhulme Trust, Natural History Museum
• Format: Article in Journal/Newspaper
• Language: English
• Published: Wiley 2020
• Subjects: Alca torda; brünnich's guillemot; common guillemot; Great auk; Pinguinus impennis; Razorbill; Uria aalge; Uria lomvia; uria
• Online Access: http://dx.doi.org/10.1111/ibi.12820; https://onlinelibrary.wiley.com/doi/pdf/10.1111/ibi.12820; https://onlinelibrary.wiley.com/doi/full-xml/10.1111/ibi.12820

We compared the shape and eggshell thickness of Great Auk Pinguinus impennis eggs with those of its closest relatives, the Razorbill Alca torda , Common Guillemot Uria aalge and Brünnich's Guillemot Uria lomvia , in order to gain additional insights into the breeding biology of the extinct Grea...