Autumn migration of the Ringed Plover (Charadrius hiaticula) in North-east Iberia

• Autores: Judith Figueroa, J. Martí Aledo
• Localización: Butlletí del Grup Català d'Anellament, ISSN 1130-2070, Vol. 11, Nº. 1, 1994, págs. 31-37
• Idioma: inglés
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• Resumen

  • The post-nuptial migration of the Ringed Plover Charadrius hiaticula is very well studied in most of Europe, buf the information relative to the Mediterranean region is very scarce. From 27 July to 12 Odober 1992 and 27 July to 24 September 1993, a total of 6 1 censuses were carried out at the Salines de la Trinitat, (40º. 37'N 00°. 35'E), a salt-pon in the Ebro Delta Natural Park. In 1993, 29 censuses were also carried out at the Estany del Cortalet, (42º. 15'N 03º. 40'E), in the Aiguamolls de Empordà Natural Park, a small wetland area, 350 km north of the Ebro Delta. The main autumn passage occurred beiween early August and late September, with iwo periods of maximum passage at the Ebro Delta (21-30 August and 10-24 September), and only one at the Aiguamolls de l'Empordà (5-9 September). The apparently limited use of the Aiguamolls in the first period of autumn rnigration could be related to the absence of suitable areas for the species in this zone. A significantly higher number of birds migrated throught the Ebro Delta in 1993 than in 1992, a year of very poor breeding success for Ardic waders.