Cracking the problem of bill size Smith, T. B.; Smith, P. B. Riverbanks 5, 2–8, 1987. Published Work, Permalink Download PDF
Does bill size polymorphism affect courtship song characteristics in the African finch Pyrenestes ostrinus? Slabbekoorn, H.; Smith, T. Biological Journal of the Linnean Society 71(4), 737–753 Published Work, Permalink Social media impact badge provided by Altmetric