Unlike birds whose plumage is mostly blue, the green coloring of a green bird’s feathers is primarily a combination of pigment and structure, not just a trick of the light. These birds’ emerald green, ...

These are small birds with dark, glossy-blue backs, red throats, pale underparts and long tail streamers. They are extremely agile in flight and spend most of their time on the wing.

The Yellow Wagtail is a small, graceful, yellow and green bird, with a medium-length tail and slender back legs. It is usually a summer visitor to the United Kingdom before migrating to Africa ...