We are indebted to Richard Foster who was aware of a wintering Rufous Night Heron (Nycticorax caledonicus manillensis), at this site since late 2018. This species is a vagrant to Taiwan. Avifauna of Taiwan (2nd edition) notes two sightings in August 2003 and June 2006. Handbook of the Birds of the World 2019 quotes three sightings in Taiwan in 2003, 2008 and 2009. The Rufous Night Heron comes up from the south; the N. c. manillensis subspecies is found in Philippines, Borneo, Java and Bali. From images online, the bird arrived in breeding plumage but is now in a non-breeding state. This area has many Black-crowned Night Herons and this vagrant seems to be accepted by the other birds.
Amar-Singh HSS (Dato’ Dr)
Ipoh, Perak, Malaysia
Location: Dayuan Township, Taoyuan City County, Taiwan
Habitat: Wetlands farming area near the sea
Date: 19th January 2019
Equipment: Nikon D500 SLR with Tamron SP 150-600mm f/5-6.3 Di VC USD, handheld with Rode VideoMic Pro Plus Shotgun Microphone