Assertion: pigeon's bird | /r/CapableOf | play large ecological role
Facets:
value: through depositing of excrements
type: MANNER
value: through tree breakage
type: MANNER
Source sentences:
text: It is believed the bird played a large ecological role in the presettlement forests of North America through tree breakage and depositing of excrements, thereby influencing the distribution of certain tree-types.