This striking plume of yellow is the fluorescing tail feathers of a male emperor bird-of-paradise (Paradisaea guilielmi). Birds-of-paradise are known for their bright colours and courtship displays.

When it comes to birds, however, green is a bit more ... to yellow as you get closer to their chest and tail. Green Jays have a unique pattern on their heads. The top side is a brilliant blue.

The tail feathers are used for steering. Birds have a unique digestive system that allows them to eat when they can—usually on the fly—and digest later. They use their beaks to grab and ...

The yellow-rumped’s unique ability to digest the waxes in ... White spots in outer tail feathers. Spring female: similar to male, but brownish above with smaller tail spots.

Chester Zoo scientists are trialling a unique tail-tagging technique to help reintroduce rare pheasants to the wild. Last week, conservationists at Chester Zoo trialled attaching dummy transmitters to ...