Barcelona is famed for Gaudí, brilliant beaches and its world-beating football team, but also supports Europe's most diverse population of introduced parakeets. But what are they, and what are the ramifications of their presence? Josh Jones investigates.
The largest of Spain's Canary Islands, Tenerife is a year-round birding destination with a good number of endemics, most of which strangely look both familiar but different. James Lowen discovers whether you can see all of the special species in one weekend.