Assertion: hadada ibis | /r/CapableOf | expand toward western africa
Facets:
value: since 1910
type: TEMPORAL
Source sentences:
text: Since 1910, it has been expanding toward western Africa, probably as a result of reduced human persecution following legal protection; proliferation of imported tree species, providing new sites for resting and nesting in formerly treeless areas; construction of reservoirs; increase in irrigated land; and arrival of cattle in zones recently colonized by mans, as cow dung favors expansion of coprophagous insects, frequent prey of the species.