cywong 17/06/2012 22:30
Little Ringed Plovers - male and female
Mai Po, 12/05/2012
It was quite unexpected that the bird with a thick black gorget is female and the one with a thin black gorget is male!
HFCheung 20/06/2012 13:54
Well done. Excellent piece of information.
cntlaw 21/08/2012 08:37
Can't believe so thanks for sharing