Thanks for the award skycop. Of course there are others I would like to thank.....etc
It was not above 500 amsl as we were over the sea coming back from the south west via Green Island.
Which , if I may I point out, is not within the Kai Tak Zone. Green Island was 'AT' 500ft, as was 'West Pass' and 'Tsin Yi'. Of course you'll remember the noticable exception was 'Lei Yue Mun Crossing' at 300ft.
So let me get this straight. You were at 500ft AMSL passing Green Island. In the Kai Tak Zone you would have had to adjust to 500ft AAL in order to comply with ATC instructions.
You had your birdstrike within the zone.
Kai Taks elevation is/was 28ft. Therefore you had your birdstrike at 528ft AMSL.
I have never had a birdstrike while flying above 500 feet agl.
But one above 500ft AMSL !
Off to get some conditioner to go with my prize.
SS