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Article
Klaus George, AuteurThe foothill zone of the Harz mountains gives home to six species of tits of the Genus Parus. In an area free of nestboxes and abroad from artificial winter feeding 2074 of those tits during 17 years were captured, ringed and in some cases retra[...]
Article
Klaus George, AuteurIn a study area of 49.3 ha in the Harz Mountains (Sachsen-Anhalt) Firecrests significantly increased between 1993 and 2002 whereas the breeding stock of Goldcrests showed considerable fluctuations during the same period, and an intense populatio[...]
