Resultados Seguimiento de Aves. Accueil - RFO - RFO - Réseau Français d'Ornithologie. Atlas de las Aves Invernantes en España. IDBD: Infraestructura de Datos de Biodiversidad de Navarra. La presencia de esta especie en Navarra refleja su carácter de reliquia glaciar que ha persistido hasta nuestros días soportando la dura prueba climática.
Si bien su nombre hace referencia al dorso blanco, esto no es realmente así, pues los picos del Pirineo tienen el dorso barreado transversalmente en blanco y negro. El píleo es rojo en el macho y negro en la hembra. Buscador. Informations générales. Données répartition aquitaine. Atlas of the fauna in Aquitaine : Species map The Atlas of the fauna in Aquitaine is the main project of Faune-Aquitaine.org.
This work is in progress!!! Select a faunic category with one of the icons beneath, then a species, to discover the repartition map, on a 10km x 10km grid, of this species in the region (you can set the time period in a matter of a few clicks), a short description of the species and its status, a chart showing the periods of occurrence of the species in the region, as well as photographs and sounds. All of thhis is generated "live" from the data accumulated by the participants, and the texts are writen on a volunteer basis. The maps have two kinds of virtues: - they provide a rather accurate idea of the occurrence of the speccies in the region, - they enable the participants to orient their field prospections towards less-well-covered areas.