It is probably easier to id leafbirds by the females. For the Greater Green Leafbird Chloropsis sonnerati the female has a yellow throat and yellow eye ring. The male has its throat and face black, quite like the male of the Lesser Green Leafbird. Both birds are found in primary, secondary and peatswamp forest but the Lesser is a lot more common.
The Sunda Teal Anas gibberifrons is a super rare duck previously only known from Kalimantan. I would also mention here the Indonesian island of Sulawesi being the other location nearest to where I saw these ducks, at a disused (prawn farming) pond at the Tinagat beach near to the town of Tawau in south-east Sabah. This duck has been making sporadic visits to this area since the beginning of this year. On my visit here in October, I was rewarded with a flock of 14 birds!
Thanks to Kok On Ku, fellow birder and photographer who led me to this great spectacle.
The Blue-winged Pitta Pitta moluccensis is a winter visitor to Borneo but this particular individual could have stayed over from earlier in the year. It was discovered in early July in scrub forest near to a housing area in Kota Kinabalu. Always a favourite with birders and bird photographers, it attracted a lot of attention while at the same time adding more discussion to whether this lends to possible local breeding.
The Copper-throated Sunbird Leptocoma calcostetha has a preference for coastal and mangrove vegetation. Elsewhere you would find it difficult to see this bird. Its behavior is typical of sunbirds with their speedy flight, moving rapidly in search of nectar and invertebrates.