Assertion: petrel's feather | /r/HasProperty | brown inner web primary
Facets:
Source sentences:
text: The common diving-petrel has brown inner web primary feathers, whereas the South Georgia petrel has light inner web feathering.
text: Unless seen very close, it is almost indistinguishable from the common diving petrel; the common diving petrel has brown inner web primary feathers, whereas the South Georgia diving petrel has light inner web feathering.
text: Almost identical to South Georgia diving petrels are common diving petrels, distinguished by their brown inner web primary feathers.