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Trend of the little owl (Athene noctua) population in the Netherlands from the breeding bird monitoring scheme organised by SOVON and Statistics Netherlands (index: 1990 = 100). Thin lines represent lower and upper 95% confidence limits. Three trend periods have been defined for analyses. Severe winters (1978/79, 1981/82, 1984/85, 1985/86, 1986/87, 1995/96 and 1996/97) are also indicated
