Borneo is a mythical and wildlife-rich island. It is home to around 222 mammals (including the Orangutan and the Borneo Pygmy Elephant), 420 birds (of which 37 are endemic), 100 amphibians and 394 fish (19 are endemic). Among the endemic birds of Borneo, the Bristlehead is one of the strangest birds on the planet. Borneo’s tropical rainforests, amongst the oldest, most complex and richest on earth, harbor most of the island’s bird, plant, mammal, insect and plant diversity. Alfred Wallace's theories of natural selection were in part inspired by his travels on Borneo in the 19th century. Two excellent bird books don’t do justice to the diversity and beauty of Borneo’s birds that range from hornbills, barbets and minivets to kingfishers, broadbills and trogons. We will explore Borneo from Mount Kinabalu, Southeast Asia's highest peak, via the world famous Sepilok Reserve to the pristine lowland rainforests of the Danum Valley encountering along the way most of Borneo's weird and wonderful endemic birds.