Both hurtled down to earth - right into the balcony of a surprised Jalan Kayu resident on Monday.

The vanquished bird has died, and this one is being treated for its injuries at the Jurong BirdPark.

The Agri-Food and Veterinary Authority (AVA) veterinarian who did the post-mortem on the dead bird found severe internal bleeding, likely due to a fight, as well as multiple cuts and bruises on its feet.

Jurong BirdPark's executive director Dr Wong Hon Mun said the surviving eagle appeared dazed and had two 10 cent coin-size wounds on its legs.

It has been given fluids, vitamins and antibiotics and will be under observation.

Mr Chris Lau, in whose balcony the eagles landed, had expressed initial worry that the stricken birds might be infected with bird flu.

The AVA said Singapore remains bird flu-free.

TRACY SUA