The Great Auk ( Pinguinus impennis) had two brood patches, not one: confirmation and implications

• Published in: Ibis
• Main Authors: Birkhead, Tim R., Fiebig, Jürgen, Montgomerie, Robert, Schulze‐Hagen, Karl
• Format: Article in Journal/Newspaper
• Language: English
• Published: Wiley 2021
• Subjects: Alca torda; brünnich's guillemot; common guillemot; Great auk; Newfoundland; Pinguinus impennis; Razorbill; Uria aalge; Uria lomvia; uria
• Online Access: http://dx.doi.org/10.1111/ibi.13019; https://onlinelibrary.wiley.com/doi/pdf/10.1111/ibi.13019; https://onlinelibrary.wiley.com/doi/full-xml/10.1111/ibi.13019

Since the late 1600s it has been assumed that the Great Auk Pinguinus impennis was similar to the Common Guillemot Uria aalge and Brünnich's Guillemot Uria lomvia in having a single, central brood patch. Through the examination of eight mounted museum specimens, we show that this is incorrect a...