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Population trends in Swedish raptors demonstrated by migration counts at Falsterbo, Sweden 1942-97

N. Kjellen, Auteur ; G. Roos, Auteur

Dans Bird Study (47 MAR 2000)

The autumn migration of raptors at Falsterbo, Sweden has been studied since the early 1940s, and from 1973 standardized counts were made. Here we present data for 15 species over a 39-year period from 1942-97. These are discussed in the context [...]

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Bird population monitoring: A comparison between annual breeding and migration counts in Sweden

S. Svensson ; C. Hjort ; J. Pettersson ; G. Roos 1986

Fagelvarld Suppl 11 p215-224

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