Assertion: cockatoo's bird | /r/CapableOf | become susceptible
Facets:
value: to behavioural problems
type: CAUSE
value: often
type: TEMPORAL
Source sentences:
text: Birds deprived of this activity become susceptible to behavioural problems.
text: These birds are highly prone to stress in captivity and often become susceptible to behavioural problems such as feather picking and excessive screaming.
text: Birds deprived of this activity become susceptible to behavioural problems.