Assertion: swan's predator | /r/CapableOf | access the nest
Facets:
Source sentences:
text: The nest is often surrounded by a 20 to 30 foot (6 to 9 meter)ditch - usually filled with water to make it more difficult for mammalian predators to access the nest.
text: The nest is often surrounded by a 20 to 30 foot (6 to 9 meter) ditch - usually filled with water to make it more difficult for mammalian predators to access the nest.