Report - De Oeverzwaluw in 1991 in Nederland · Zuid-Holland 4 4 4 45 11,3 65 100 Zeeland 6 6 12 254 23,1 81 300 Noord-Brabant 20 25 39 672 17,2 89 750 NB grens Belgie 3 5 15 441 29,4 92 500

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