Assertion: dark cockatoo | /r/HasProperty | dimorphic
Facets:
value: sexually
type: MANNER
Source sentences:
text: The dark cockatoos (subfamily Calyptorhynchinae) are sexually dimorphic and therefore comparatively easy to sex (see taxonomy section for guidelines), while the white cockatoos (subfamily Cacatuinae) do not display any difference in feather coloration and pattern between males and females.