Quote:
Original posted by ddavid at 28/10/2018 00:03 ![](http://www.hkbws.org.hk/BBS/images/common/back.gif)
I think these are Lesser Scaup. Greater Scaup has a rounded head. Lesser Scaup has a peaked rear crown - as shown in your photograph.
David
www.birdinghongkong.com
David,
Thank you for your advice.
WK