Assertion: skylark's number | /r/CapableOf | lead poisoning
Facets:
value: from birds
type: OTHER
Source sentences:
text: More recently in the period from about 1960 up to the early 1980s, numbers declined significantly again in many areas in England, primarily due to lead poisoning from birds swallowing discarded fishing sinkers made from lead.
text: More recently in the period from about 1960 up to the early 1980s, numbers declined significantly again in many areas in England, primarily due to lead poisoning from birds swallowing discarded fishing sinkers made from lead.