Waarneming.nl (NL) - Great Grey Shrike Count 2007-2008

Hisko de Vries

doi:10.15468/n5gtjy

Waarneming.nl (NL) - Great Grey Shrike Count 2007-2008

Citation

de Vries H (2020). Waarneming.nl (NL) - Great Grey Shrike Count 2007-2008. Version 1.4. Observation.org. Occurrence dataset https://doi.org/10.15468/n5gtjy accessed via GBIF.org on 2025-04-22.

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/225). For this dataset, covering the winter of 2007 / 2008, in total 223 individual birds were monitored in 183 areas. The dataset contains multiple counts per individual.

Sampling Description

Study Extent

n/a

Sampling

The observer(s) investigates the claimed area(s) on two seperate filedtrips 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 excubitor
common name: Great Grey Shrike rank: genus

Geographic Coverages

The Netherlands

Bibliographic Citations

Contacts

Hisko de Vries
originator
Stichting Natuurinformatie
Pieter Nieuwlandstraat
Utrecht
3514Hj
Nederland
Telephone: +31613448663
email: hiskodevries@gmail.com
homepage: https://waarneming.nl

Hisko de Vries
metadata author
Stichting Natuurinformatie
Pieter Nieuwlandstraat
Utrecht
3514Hj
Nederland
Telephone: +31613448663
email: hiskodevries@gmail.com
homepage: https://waarneming.nl

Cees H.J. Hof
publisher
position: Node Manager
NLBIF
P.O. Box 93102
Amsterdam
NL-1090 BC
NL
Telephone: +31 20 5255496
email: c.h.j.hof@uva.nl
homepage: http://www.nlbif.nl

Hisko de Vries
administrative point of contact
Stichting Natuurinformatie
Pieter Nieuwlandstraat
Utrecht
3514Hj
Nederland
Telephone: +31613448663
email: hiskodevries@gmail.com
homepage: https://waarneming.nl