The brown-winged kingfisher (Pelargopsis amauroptera) is a threatened bird. Its colours, caramel-orange with dark chocolate wings and a dazzling turquoise patch on the rump, are seen best in flight. This large tree kingfisher is a striking gem that is at home in mangroves, tidal rivers, and creeks of the Sundarbans of India and Bangladesh, and other mangrove forests of the south-east Asia. Photos: Dhritiman Mukherjee (top), Soumyajit Nandy (above) 