Hi Geoff, will these photos help?
![](https://fbcdn-sphotos-g-a.akamaihd.net/hphotos-ak-ash3/830314_10151301989338511_90118743_o.jpg)
I took these 2 photos, in Pond 20.
![](http://sphotos-h.ak.fbcdn.net/hphotos-ak-prn1/858863_537178802971119_1896527752_o.jpg)
And these 2 were taken by my father, WK Chung.
The Baer's Pochard was quite far away from us, also the hot air refraction, the photos are not very good......
We saw 1 on 14-02-2013.