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Documents disponibles écrits par cet auteur (5)
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Article
Tim R. Birkhead, Auteur ; Robert Montgomerie, AuteurWe evaluate whether a Neolithic engraved rock image at the Alta archaeological site in Finnmark, Norway – of a bird being held by a person – represents a Great Auk Pinguinus impennis. There are several thousand engraved animal figures at Alta, c[...]
Article
Tim R. Birkhead, Auteur ; Jürgen Fiebig, Auteur ; Robert Montgomerie, Auteur ; Karl Schulze-Hagen, AuteurDans Ibis (164(2) 2022)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 [...]
Article
Tim R. Birkhead, Auteur ; Jamie E. Thompson, Auteur ; John D. Biggins, Auteur ; Robert Montgomerie, AuteurA recent broad comparative study suggested that factors during egg formation – in particular ‘flight efficiency’, which explained only 4% of the interspecific variation – are the main forces of selection on the evolution of egg shape in birds. A[...]
Article
Robert Montgomerie, Auteur ; T. R. Birkhead, AuteurWe describe a unique, hand-coloured copy of Ray's (1678) The Ornithology of Francis Willughby that was apparently presented to Samuel Pepys between 1684 and 1686 during his presidency of the Royal Society. Somehow, this volume was not catalogued[...]
Article
Sara Calhim, Auteur ; Robert Montgomerie, AuteurGonad size and shape asymmetries are particularly common in birds. Although some obvious size and shape differences between the left and right testes in birds were first documented more than a century ago, little is known about what influences t[...]
