Assertion: wren's study | /r/CapableOf | confirm sherman’s observations
Facets:
value: over the last century
type: TEMPORAL
Source sentences:
text: And indeed, over the last century, several studies have confirmed Sherman’s observations: Wrens will puncture the eggs of bluebirds, woodpeckers, nuthatches, sparrows, chickadees, swallows, Bobolinks, and warblers, and occasionally take over their nests.