• Publications
  • Influence
A review of hypotheses for the functions of avian duetting
  • M. Hall
  • Environmental Science
    Behavioral Ecology and Sociobiology
  • 1 March 2004
Characteristics of duets have rarely been quantified in detail, and information about variability among species in the precision of duetting is necessary, not only to test hypotheses about function, but also to define duetting more precisely.
Vocal performance influences male receiver response in the banded wren
The results show that male banded wrens discriminate and respond differently to songs based on their vocal performance, which indicates that performance of physically challenging songs may be important in intra- as well as inter-sexual assessment.
Female song is widespread and ancestral in songbirds.
An extensive survey and ancestral state reconstruction of female song across songbirds is presented showing that female song is present in 71% of surveyed species including 32 families, and that females sang in the common ancestor of modern songbirds.
Multiple benefits of cooperative breeding in purple-crowned fairy-wrens: a consequence of fidelity?
Comparisons in a genetically monogamous cooperatively breeding bird and 37 avian species showed that improvement of (male) breeder survival and enhanced productivity are more likely when fidelity is higher, as predicted when investment of subordinates correlates with relatedness to offspring.
The function of duetting in magpie-larks: conflict, cooperation, or commitment?
  • M. Hall
  • Psychology
    Animal Behaviour
  • 1 November 2000
The experiment showed that, like many nonduetting species, magpie-larks recognize neighbours on the basis of song, and provided evidence of functional differences between duetting and solo singing which indicate that temporal coordination of song between partners is used to maintain the territory and pair bond.
Increased opportunities for cuckoldry may be why dominant male fairy-wrens tolerate helpers
It is shown that dominant males with helpers provide less parental care during the nestling period, and use this reduced workload to make extra-territorial forays which are used to court extra- group females and DNA fingerprinting suggests that this increased display rate provides them with an advantage in obtaining extra-group copulations.
Radical loss of an extreme extra-pair mating system
Very low levels of extra-pair paternity (EPP) are demonstrated in the purple-crowned fairy-wren Malurus coronatus, a member of the genus with the highest known levels of EPP in birds, and this indicates that evolutionary inertia does not necessarily constrain interspecific variation in EPP.
Female songbirds still struggling to be heard.