This is a summer visitor which is easy to identify as it flies over the reed beds. Probably the best two places to get views are Albufera and Albufereta where they are regularly spotted. It is worth noting that at Albufera you can also see Night and Squacco Herons as well as Little Bitterns.
Purple Heron (Ardea purpurea) is a wading bird in the heron family Ardeidae, breeding in Africa, central and southern Europe, and southern and eastern Asia. The European populations are migratory, wintering in tropical Africa. The purple heron is a large bird, 78–97 cm (31–38 in) in length with a standing height from 70 to 94 cm (28 to 37 in) and a 120–152 cm (47–60 in) wingspan. However, it is slender for its size, weighing only 0.5–1.35 kg (1.1–3.0 lb). It is somewhat smaller than the grey heron, from which it can be distinguished by its darker reddish-brown plumage and, in adults, darker grey back. It has a narrower yellow bill, which is brighter in breeding adults.