Assertion: mallard | /r/HasProperty | preyed by grey heron
Facets:
Source sentences:
text: Mallards are also preyed upon by other waterside apex predators, such as the grey heron, European herring gull, the wels catfish, and the northern pike.
text: Mallards are also preyed upon by other waterside apex predators, such as the grey heron, European herring gull, the wels catfish, and the northern pike.