A brief guide to birdwatching in the age of dinosaurs

Birds are actually a type of dinosaur. They are closely related to smaller, agile meat-eating dinosaurs such as the Velociraptor. Ancient birds came in a variety of forms, from ones with teeth and claws to species barely distinguishable from farmyard chickens.

So, if you were to point your binoculars over the heads of Triceratops and Tyrannosaurus rex, what could you spot? Here is a quick introduction to six of the most interesting ancient bird species.