Publications

correlation between the size of song control nuclei and plumage color change in orange bishop birds.	adult male orange bishop birds (euplectes franciscanus) develop beautiful nuptial plumage during the breeding season, but have the same sober plumage as the female during the non-breeding season. the male conspecific song is highly stereotyped during nuptial plumage. large volume differences were found in two song control nuclei in the cerebrum between the male and female during the breeding season, and in the same nuclei of the males during the breeding and non-breeding seasons. the seasonal ch ...	1989	2710408
vocalizations of male euplectes in captivity.	the dramatic visual displays of the euplectes- male male have led to their vocalizations being neglected. 6 male male of euplectes franciscanus and e. after, and 2 e. hordeaceus- male male were kept in aviaries in sound-proof rooms, where vocalizations were recorded during observations of their behaviour, and later analysed on a sound spectrograph. the calls described and illustrated do not represent the complete repertoire of these species. however, the distinctive songs of e. after and e. fran ...	1976	961124