A courting pair of White-bellied Sea Eagles would display their skilful art of talon grappling in flight just before mating. The couple would seat near the nest fir long period then leaving to fly wing tip to wing tip for while. When the excitement is built up, one flip upside down and interlock their talons. Both birds would then cartwheel or whirling for a while before the talons to be released at the last moment. This is one loving or friendly act.
The same act could also be seen by the male and an intruder to the nest. Or by the young bird with food and being attacked by an adult. This time the same performance done with hostility would be carried out until both crash into the tree top or till the loser makes defeated flight. The act is widely publicized as a documentary series on TV