Assertion: female cockatiel | /r/CapableOf | become depressed
Facets:
value: suddenly
type: MANNER
Source sentences:
text: If your female cockatiel has suddenly become depressed, if she is sitting on the bottom of the cage, if her abdomen appears swollen or if you notice droppings stuck to her vent, she should be examined by your avian veterinarian in case she is having a problem with her cycle.