Assertion: owl's activity | /r/HasProperty | mobbed by such birds
Facets:
value: as rooks
type: OTHER
value: as black-headed gulls
type: OTHER
value: as magpies
type: OTHER
Source sentences:
text: However, in Britain, some birds continue to hunt by day even when mobbed by such birds as magpies, rooks and black-headed gulls, such diurnal activity possibly occurring when the previous night has been wet making hunting difficult.