This kingfisher had me puzzled for quite a while regarding its exact ID. I checked several books, including "Kingfishers of the World", looking for a species with something like a low crest but I just couldn't find a picture match. In the end, I inferred that this must be a White-breasted Kingfisher (Halcyon smyrnensis), the commonest of 13 kingfisher species in Peninsular Malaysia. This photo was taken under direct, bright sunlight which made identification based on it difficult. I think the "low crest" was just some ruffled feathers, or perhaps the kingfisher was having a bad hair day when I took its picture.