Assertion: cormorant's number | /r/CapableOf | decline with westward settlement
Facets:
Source sentences:
text: In the 1800s and early 1900s, cormorants were frequently shot, and their numbers declined with westward settlement.
text: In the 1800s and early 1900s, cormorants were frequently shot, and their numbers declined with westward settlement, but thanks, in large part, to the Migratory Bird Treaty Act signed in 1918, their populations have increased phenomenally.