Dutch Centre For Field Ornithology (SOVON) - Bird Atlas 1978-1983 - metadata
CitationDutch Centre For Field Ornithology (SOVON) - Bird Atlas 1978-1983 - metadata. Dutch Centre for Field Ornithology (Sovon). Metadata Dataset https://doi.org/10.15468/itzkr1 accessed via GBIF.org on 2017-08-18.
DescriptionThe atlas was published in 1987. In the period October 1978 - September 1983 the occurrence of the species was recorded using a grid of 5 x 5 km squares as a geographic unit.The results of this work were combined to form 12 maps per species, one for each month.
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