Assertion: avocet's number | /r/CapableOf | have decreased by about 35%
Facets:
value: between the mid-1970s
type: TEMPORAL
value: between the mid-1990s
type: TEMPORAL
Source sentences:
text: Numbers of the red-legged kittiwake are thought to have decreased by about 35% between the mid-1970s and the mid-1990s although numbers could have stabilized since.