Détail de l'auteur
Documents disponibles écrits par cet auteur (14)
Ajouter le résultat dans votre panier Affiner la recherche
Article
Robert Pfeifer, Auteur ; Jacqueline Cromer, AuteurThe mutation of this bird, observed in February 2013 near Weidenbach, Middle Franconia, is defined as "Brown", a qualitative reduction of eumelanin. The eumelanin synthesis is incomplete as the eumelanin is not fully oxidized. The phaeomelanin i[...]
Article
Robert Pfeifer, Auteur ; Jutta Stadler, Auteur ; Roland Brandl, Auteur
Article
Robert Pfeifer, Auteur ; Jutta Stadler, Auteur ; Roland Brandl, AuteurEvery year birdwatchers throughout Europe record the arrival of a considerable number of vagrants from the eastern Palaearctic. We analysed the occurrence of such vagrants in Central Europe of the genera Phylloscopus, Turdus and Zoothera in Cent[...]
Article
Article
Robert Pfeifer, Auteur ; Joerg Mueller, Auteur ; Jutta Stadler, Auteur ; Roland Brandl, AuteurUsing the data from the breeding bird atlas of Bavaria (1996-1999) and land cover data from the European wide project CORINE, we correlated species richness of breeding birds (altogether 208 species) to ten types of landcover using 1927 grids (a[...]
Article
Friedrich Heiser, Auteur ; Otto Holynski, Auteur ; Robert Pfeifer, AuteurIn 2005 near Kitzingen, Lower Franconia, successful breeding of two pairs of Hoopoes was documented. This was the first breeding record in Bavaria since 1997.
Article
Robert Pfeifer, AuteurIn 2009, the occurrence of Bluethroats was studied over an area of 52 sqkm in the valley of the Roter Main (Upper Franconia, Bavaria, Germany). Singing males were found at 21 sites, 17 territories being occupied for a longer time during spring. [...]
Article
Robert Pfeifer, Auteur
Article
Article
Klaus Schmidtke, Auteur ; Robert Pfeifer, Auteur ; Jutta Stadler, Auteur ; Roland Brandl, AuteurBy using a time series of more than 30 years, we describe the population dynamics of three grebe species occurring in a pond area of north-eastern Bavaria (Tachybaptus ruficollis, Podiceps nigricollis, P. cristatus): (1). The Little Grebe showed[...]
Article
Eberhard Mey, Auteur ; Robert Pfeifer, Auteur ; Hans-Heiner Bergmann, Auteur ; Sabine Hackethal, AuteurA water colour painting from the 'Gothaer Vogelbuch' [The bird book of Gotha] of a Pine Grosbeak pair from some time between 1603 and 1662, or even earlier, is dealt with here. The birds were captured on a fowling ground near Ossla (Wurzbach) in[...]
Article
Michael Bacht, Auteur ; Sascha Roesner, Auteur ; Joerg Mueller, Auteur ; Robert Pfeifer, Auteur ; Jutta Stadler, Auteur ; Roland Brandl, Auteur ; Lars Opgenoorth, AuteurThe Ring Ouzel (Turdus torquatus) has an arctic alpine distribution, with small populations also occurring at the higher altitudes of the low mountain ranges north of the Alps. The populations of the Alps and mountain ranges are classified as th[...]
Article
Robert Pfeifer, Auteur ; Jutta Stadler, Auteur ; Roland Brandl, AuteurIt was hypothesized that the noisy environment along rivers calls for alternative ways of communication. In birds living near rivers, a long tail and wagging may serve as an optical communication system and thus may support vocal communication. [...]
Article
Dietmar Walter, Auteur ; Robert Pfeifer, AuteurOn 14(th) August 2007 a first year Thrush Nightingale was caught and ringed in the moors near the village of Betzigau (47 degrees 44' N; 10 degrees 23' E; 710 m NN, Swabia, Bavaria). This lies within the seasonal distribution of 13 other records[...]
