These striking butterflies can be seen in a wide range of habitats from March through to as late as November. Red Admiral Facts: • It is thought the name 'admiral' was chosen as a reference to the Royal Navy ensign that was hoisted when an admiral was on board. The flag features red, white and blue on a plain background. • Many of the Red Admirals we see in this country have migrated here from North Africa and parts of Europe however some in the south of England are now considered a resident population, able to overwinter thanks to a milder climate. • In French the Red Admiral is known as Le Vulcain, the Roman god of fire, most likely in reference to the flame-red wing markings.