Jansen, Pieter B; de Nie, Henrik W (2014): Bird count in Mastbos forest (Breda, Netherlands) in the years 1950 to 1981 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.834664, Supplement to: Jansen, PB; de Nie, HW (1986): Dertig jaar zangvogel inventarisatie in het Mastbos (Breda) (Thirty years of passerine breeding bird monitoring in a mixed wood). Limosa, 59(3), 127-134, https://www.nou.nu/limosa/limosa_issue.php?volume=59&issue=3
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Abstract:
Notes from Henrik de Nie:
The project started as a phenological study in cooperation with the (Dutch) meteorological institute (KNMI) to register the time of arrival of Fitis and Tjiftaf. During 1951 to 1969 he went every day to the wood (except 1966, in this year his wife died). Thereafter he went no more daily, but because he knew the wood very well and he was free to choice the day on which he did a survey, therefore he choose days with relatively good weather.
He did not observe very common bird species, maybe because they are dependent on nest boxes and he did not want to be dependent on the management of the nest box-people (in fact I forgot precisely his arguments, and now I cannot ask him this): Common Starling; Eurasian Tree Sparrow (not common); Great Tit; Eurasian Blue Tit
Pieter mentioned 14 species that scored many zero values or only one observation: Stock Dove; Common Cuckoo; Lesser Spotted Woodpecker; Eurasian Golden Oriole; Eurasian Nuthatch; Short-toed Treecreeper; Common Nightingale; Marsh Warbler; Lesser Whitethroat; Goldcrest; Common Firecrest (after 1970 he had difficulties in hearing these two species); Spotted Flycatcher; Eurasian Bullfinch; Black Woodpecker
He also mentioned species that he found much fewer as: European Greenfinch; European Pied Flycatcher; Long-eared Owl; Red Crossbill; Sedge Warbler; Icterine Warbler; Eurasian Woodcock; Eurasian Siskin; European Green Woodpecker; Great Spotted Woodpecker; Eurasian Hobby; Western Barn Owl; Woodlark; Common Wood Pigeon; Little Owl; European Crested Tit; Hawfinch.
But for these species I think that observations are strongly dependent on the number of visits to the wood. Also here, many zeros and few 1 x during the whole series of visits.
Coverage:
Latitude: 51.547200 * Longitude: 4.763300
Date/Time Start: 1950-01-01T00:00:00 * Date/Time End: 1981-12-31T00:00:00
Minimum Elevation: 13.0 m * Maximum Elevation: 13.0 m
Event(s):
Comment:
These data were collected by Pieter Jansen (1911-2005) and the findings are summarised in the upper mentioned paper. These data were kindly provided by Henrik de Nie and have been posted with the permission of AnnaElise Jansen
Some of the counts were made by territory mapping and for more rare species, by maximum counts. The method is specified in the column "Method comment". Some very common species were present but not counted either because they used nest boxes or they were so abundant that they would have been difficult to count (e.g., Woodpigeon). See notes in abstract.
Parameter(s):
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
1327 data points