Resultaten van de midwinter-telling 1990 op slaapplaatsen van de blauwe kiekendief Circus cyaneus in de Vlaamse kustpolders
As a part of an international study on wintering Hen Harriers Circus cyaneus in Europe, roosting sites in the coastal Polders of Flanders have been counted on 13 and 14 January 1990. The position of the roosts is given in Fig. I. The numeric distribution on mid-January counts in 1989 and 1990 is sho...
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| Format: | Article in Journal/Newspaper |
| Language: | Dutch |
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1990
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| Online Access: | https://www.vliz.be/imisdocs/publications/260372.pdf |