Waarneming.nl (NL) - Great Grey Shrike Count 2009-2010
Citation
de Vries H (2020). Waarneming.nl (NL) - Great Grey Shrike Count 2009-2010. Version 1.2. Observation.org. Occurrence dataset https://doi.org/10.15468/kecfa0 accessed via GBIF.org on 2023-05-31.Description
Since 2007 every winter a count is organised by Waarneming.nl in order to monitor the dynamics of the Great Grey Shrike populations in The Netherlands in a number of dedicated areas. Volunteer bird watchers select their own area and every winter they count twice, in December and in late January / early February. Also the absence of Great Grey Shrikes was noted (0 counts). The results of these yearly counts are captured in maps that show the presence / absence of these birds (http://waarneming.nl/tel_project_new/gmap/210). For this dataset, covering the winter of 2009 / 2010, in total 116 individual birds were monitored in 102 areas. The dataset contains multiple counts per individual.Sampling Description
Study Extent
n/aSampling
The observer(s) investigates the claimed area(s) on two seperate fieldtrips with at least 3 weeks interval.Quality Control
All observations of this species are validated by the Waarneming.nl validation team. To ensure no mistakes are in the data.Method steps
- n/a
Taxonomic Coverages
Lanius excubitor
-
Lanius excubitorcommon name: Great Grey Shrike rank: species
Geographic Coverages
the Netherlands
Bibliographic Citations
Contacts
Hisko de Vriesoriginator
Waarneming.nl
P. Nieuwlandstraat
Utrecht
3514HJ
NL
Telephone: 0613448663
email: hiskodevries@gmail.com
homepage: https://waarneming.nl
Hisko de Vries
metadata author
Waarneming.nl
P. Nieuwlandstraat
Utrecht
3514HJ
NL
Telephone: 0613448663
email: hiskodevries@gmail.com
homepage: https://waarneming.nl
Hisko De Vries
user
email: hiskodevries@gmail.com
Hisko de Vries
administrative point of contact
Waarneming.nl
P. Nieuwlandstraat
Utrecht
3514HJ
NL
Telephone: 0613448663
email: hiskodevries@gmail.com
homepage: https://waarneming.nl