Against which large animal was a recorded instance of direct aggression observed near a Sarus nest containing one egg?

Answer

Bluebull (Nilgai antelope)

In one documented event, an Indian Sarus Crane actively attacked a Bluebull (Nilgai antelope) that strayed too close to its nest site, utilizing its wingspan to strike the animal.

Against which large animal was a recorded instance of direct aggression observed near a Sarus nest containing one egg?
behaviorbirdSarus Craneaggressivity