Species Action Plans Purple Gallinule (Porphyrio porphyrio)
This species has an extremely large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence 30% decline over ten years or three generations). The population size is very large, and hence does not approach the thresholds for Vulnerable under the population size criterion (10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern. [source: Birdlife.org]
[Purple Gallinule (Porphyrio porphyrio) Europe 1999]
The Purple Gallinule Porphyrio porphyrio is listed as a SPEC 3 and is considered ‘Rare’ in Europe due to their limited numbers (Tucker & Heath, 1994). It is also listed in Annex I of the EC Birds Directive and Appendix II of the Bern Convention. Europe holds the nominal subspecies P. p. porphyrio, that shows a fragmented distribution range as a consequence of a large decline that the species has suffered between the end of 19th and mid 20th. Current European population is estimated to be ca. 3.990-5.154 breeding pairs, 85-90% within Spain (3.500-4.500 pairs). Much smaller populations remain in Sardinia (450-600 pairs), Portugal (34-38 pairs) and France (6-16 pairs). In Greece the species was a rare resident breeding bird in the 19th century in Southern mainland and became extinct by the end of that century. Russia (Caspian Sea) and Turkey hold the subspecies P. p. caspius, whose current conservation status is unclear. European populations are recovering and expanding their distribution range as a consequence of direct protection measures of the species and its habitat. However, some threats still remain which can stop or jeopardise this recovery process, namely habitat loss and degradation. Reintroduction programmes may be needed overcome habitat and population fragmentation.
Covadonga Viedma Gil de Vergara and Mario Giménez Ripoll (1999). Species Action Plan for the Purple Gallinule Porphyrio porphyrio in Europe. BirdLife International on behalf of the European Commission