cgeoff

The map below shows the air mass backward trajectory for the 72 hrs prior to 8am on 6th March (supplied by NOAA Air Resources Laboratory). Gives a good clue as to its origins (and it doesn't seem to be Fairview Park!).

GeoffC

trajectory2010030600.png (39.32 KB)

9/03/2010 11:01

cgeoff

This map is provided by the HK Observatory, and can be found at:

http://www.hko.gov.hk/wxinfo/trajectory/trajectory_e.shtml

It's very interesting to see the where local air masses originate, and appears to be a good indicator of the origin of newly-arrived birds.

No prizes for guessing where today's air originates....

GeoffC

cgeoff

Certainly that's a possibility that will need to be discussed. However, given that other records have occurred in Taiwan and the southernmost Japanese islands, given the time of year and given also the source of air masses in the unseasonably warm weather recently, there is, in my opinion, at least as much likelihood that it is of natural occurrence.

So Gary, who found the bird? Who should I invite to write a first paper, if it's accepted into Category A?

We guessed that it had been thought to be a hybrid/ex-captive individual.

GeoffC

[ Last edited by cgeoff at 9/03/2010 14:54 ]