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Article
S. Oppel, Auteur ; H. M. Schaefer, Auteur ; V. Schmidt, Auteur ; B. Schroder, AuteurPale-headed Brush-finch Atlapetes pallidiceps is a restricted-range species that is threatened with extinction due to habitat loss. The total population of 60-80 individuals achieved a reproductive output of only 0.74 young per breeding pair in [...]
Article
H. M. Schaefer, Auteur ; V. Schmidt, AuteurWe compared the feeding behaviour of two groups of captive Blackcaps (Sylvia atricapilla) on a mixed diet consisting of an insect diet and ripe or unripe fruits. Unripe Black Elder (Sambucus nigra) fruits have lower nutritional values, especiall[...]
Article
H. M. Schaefer, Auteur ; B. Naef-daenzer, Auteur ; B. Leisler, Auteur ; V. Schmidt, Auteur ; J. K. Muller, Auteur ; K. Schulze-Nagen, AuteurThe range use of both sexes of the Aquatic Warbler was studied during two breeding seasons by radio-tracking. Males used home ranges of up to 8 ha. These home ranges overlapped by up to 74 %, (mean 51 %) between individuals. During the mating pe[...]
