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Article
During the second half of the 20th century, the Northern Pintail has been a scarce and local breeder in Denmark, especially in West Jutland and southeastern Denmark, where most of the population is concentrated. The entire Danish population was [...]
Article
Thomas Bregnballe, Auteur ; Hans Erik Jorgensen, AuteurThe Common Tern is an Annex I species on the EU Birds Directive. It is designated as a breeding species for 30 of the Danish SPAs. Knowledge about breeding occurrence of terns has been collected mainly in projects and surveys initiated and carri[...]
Article
Breeding populations of birds of prey were thoroughly surveyed during the 1970s and early 1980s (Jorgensen 1989). The present paper attempts to update numbers and trends of breeding raptors on basis of results from censuses performed since then [...]
Article
Breeding birds of prey (pairs initiating nest building or repair) were recorded annually (Fig. 2, Appendix 1) in two 100 km2 areas in SE Denmark in 1977-97, and during the mid-1990s in two much larger areas (Tab. 1) which included the two 100 km[...]
