Assertion: mallard | /r/HasProperty | attacked by swan
Facets:
Source sentences:
text: Also, mallards may be attacked by larger anseriformes such as swans (Cygnus spp. ) and geese during the breeding season, and are frequently driven off by these birds over territorial disputes.
text: Also, mallards may be attacked by larger anseriformes such as swans (Cygnus spp. ) and geese during the breeding season, and are frequently driven off by these birds over territorial disputes.