AGGRESSION AMONG HOODED ROBINS Melanodryas cucullata AND OTHER BIRDS
| Posted: |
28/07/2021 |
| Author(s): |
Hugh A. Ford, Lulu L. Fitri |
Male Hooded Robins
Melanodryas cucullata displayed more aggression towards conspecifics than did females,
and may be involved in more aggression with other species. lntraspecific aggression was infrequent, with 2.5 acts
per hour, probably because the species occurs at low density and most groups have few neighbours.
Most interspecific aggression was directed at ecologically similar ground or aerial foraging insectivores, such as
other robins, Jacky Winters
Microeca fascinans and Willie Wagtails
Rhipidura leucophrys. This could have been due
to misdirected intraspecific aggression, as these species resemble either male or female Hooded Robins, or due to
potential competition for food. Smaller ground-feeding insectivores, such as thornbills, were also the recipients of
Hooded Robin aggression.
Several interactions involved the notoriously aggressive honeyeaters, though Robins were often the aggressor
rather than recipient of aggression. Robins sometimes attacked potential nest predators, such as Laughing
Kookaburras
Dacelo novaeguineae. Female Robins showed injury-feigning behaviour to an intruding Kookaburra and
often to people near to her nest.
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