Thanks very much for your sharing and birding report, John.
I visited Northern Lamma before in May this year. Maybe the season was different and I was not as skillful as you, the places like Yung Shue Long, Tai Peng and Pak Kok were not so birdy but it's still worth visiting (I also saw Arctic Warblers and a Dollarbird). I just went hiking long time ago around Mo Tat, Tung O and Lo So Shing. I think it's time I visit there again!