Published online by Cambridge University Press: 27 October 2009
page 146 note 1 Both birds proved to be females but are splendid specimens and in good condition (February 1960).
page 146 note 2 Johns Hopkins University, Baltimore.
page 146 note 3 Medical Research Council, London.
page 146 note 4 Supported in part by a grant from the United States Public Health Service.