New cases of extra secondaries in passerines

• Autores: Carles Barriocanal Lozano, José Luis Copete, Santiago Galán, Raimon Mariné
• Localización: Butlletí del Grup Català d'Anellament, ISSN 1130-2070, Vol. 10, Nº. 1, 1993, págs. 23-24
• Idioma: inglés
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• Resumen

  • On 04.07.93 a second year (Euring code 5) male Citril Finch Serinus citrinella with on extra feather inserted under the first secondary of the left wing was trapped at la Molina (Pyrenees, Girona, NE Spain]. The right wing showed the normal number of feathers. The wing formulo wos similar to a sample of birds of the same sex tropped at the same site. The abnormal position of insertion of the extra secondary seems therefore not to have affected the overall shape of the wing. This contrasts with another published report on the Serin Serinus serinus, in which the extra feather affected the wing-shope. Two additional cases, one of a Reed Warbler Acrocephalus scirpaceus, and the other of a Cirl Bunting Emberiza cirlus, are olso reported.