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Article
S. van Balen, Auteur ; V. Nijman, Auteur-headed Fruit-dove Ptilinopus porphyreus is a little-known, restricted-range species, endemic to the mountains of the Indonesian islands of Sumatra, Java and Bali. In the period 1981-2002 we conducted surveys throughout its range and compiled da[...]
Article
S. van Balen, Auteur ; James A. Eaton, Auteur ; Frank E. Rheindt, AuteurThe Short-tailed Green Magpie Cissa thalassina, a member of an Asian lineage of uniquely coloured corvids, is represented by two subspecies, thalassina and jefferyi, that occur on the islands of Java and Borneo, respectively. The distinct Javan [...]
Article
S. van Balen, Auteur ; V. Nijman, Auteur ; R. Sozer, AuteurThe Javan Hawk-eagle Spizaetus bartelsi is endemic to the island of Java. Severe habitat fragmentation and small population size, aggravated by illegal hunting have put this rainforest species on the list of threatened bird species. Intensive se[...]
Article
S. van Balen, Auteur ; Vincent Nijman, AuteurIn a manuscript written by August Spennemann in the 1930s, information is presented on display behaviour, vocalizations and habitat at two hitherto unknown localities of the Javanese Lapwing Vanellus (Hoplopterus) macropterus, a species last rec[...]
Article
V. Nijman, Auteur ; S. van Balen, AuteurNatal dispersal and philopatry have rarely been studied in tropical forest raptors. Especially with respect to endangered species with fragmented distributions more knowledge of dispersal and age-related habitat preferences is needed for proper [...]
