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Such an interesting study

Himalayan black bulbuls (Hypsipetes leucocephalus niggerimus) exhibit sexual dichromatism under ultraviolet light that is invisible to the human eye


can you ID the following which one is male which one is female ?






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new records birds for Taiwan ( Bar-headed goose )

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Before and after the cold wave in Jan 2021 The cold wave brought several new records birds for Taiwan Bar-headed goose (Anser indicus) is a goose that breeds in Central Asia in colonies of thousands near mountain lakes and winters in South Asia, as far south as peninsular India It is known for the extreme altitudes it reaches when migrating across the Himalayas. We can't confirm why made it fly to Taiwan , but it attracts almost all Taiwan's birder & photographer to see it .  The photo was taken by my friend @penshing He is the author of a photographic guide book of Wild birds o Taiwan ( Chinese) The book can be published, due to borrowed many bird photos from my friends, he said modestly. . #taiwan #newrecord #birds #birding #birdwatching #nikon
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Malayan Night Heron （Gorsachius melanolophus） From the English name " Malayan Night Heron " we can surmise they are mainly distributed in Malaysia and the Indo-China peninsula, but now those areas are not easy to see ( seems very diffcult ) In Taiwan, there are few fixed groups in central and southern hill area. Twenty or three years ago, the Malayan Night Heron in Taiwan, the amount of rare groups, in the bird guide book is belong "rare resident" level . And their activiti es almost under forest in the hill , is not easy to observe. But We do not know why, more than a decade, the Malayan Night Heron's population gradually to the north expansion, and seems to have begun to adapt to the city environment, so in the major campuses, botanical gardens, parks and other urban green places are also more common. The original rare birds, now is the major birds on the lawn of the parks. Breeding period of 3 to 9 months, during the courtship  male will be sta...
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It's out, and it's excellent! If you are thinking of birding Taiwan (or nearby) you need this book. ** May take a couple weeks before on sale overseas ** It's all you need for birding Taiwan. There is comprehensive coverage of the avifauna of the main island, offshore islands (Matsu, Lanyu, Kinmen etc), and surrounding seas. 670 birds are fully illustrated, plus compact double plates for escapees and difficult species comparisons. Eight years in preparation, the wait was wort h it and WBST is to be congratulated for producing such a useful book. The artwork is very good and of a standard meeting, or exceeding, that of international publishers. No other book illustrates the current 27 endemics, 56 endemic subspecies, other resident/migrant species and relevant subspecies better. The 190 annotated painted plates will make it the default guide for foreign birders to Taiwan - and useful for birding other countries nearby. The plates have English species names and key fi...
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