During guided outings in a small motorboat along a Malaysian river, we would also see purple herons, endangered storks, and — a highlight of the trip — an orangutan.

A conservation worker at Berkshire, Buckinghamshire, and Oxfordshire Wildlife Trust has said she "never gets bored" of the work she does.

A brightly colored bill can be one of the best clues when identifying birds, and red-beaked species are some of the most ...