NDFF Point-transect counts for birds

Latest version published by Dutch National Database of Flora and Fauna (NDFF) on Mar 27, 2018 Dutch National Database of Flora and Fauna (NDFF)

The Point Transact Count Project (PTT) is the longest-running monitoring project of Sovon Dutch Centre for Field Ornithology. It has the following aim: reporting on numbers and occurrence of more or less common winter birds, in addition to other winter bird projects (such as water bird counting projects).

All species are counted. This project contributes invaluable data on about 80 species. It looks at birds that migrate for the winter from Northern and Eastern Europe (Turdus pilaris, Fringilla montifringilla) and resident birds (Picus Viridis, Passer domesticus).

Dataset available via https://www.ndff.nl/english / serviceteamndff@natuurloket.nl

3,006,511 records (March 2018)



Download the latest version of the metadata-only resource metadata as EML or RTF:

Metadata as an EML file download in English (6 KB)
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The table below shows only published versions of the resource that are publicly accessible.


Researchers should respect the following rights statement:

The publisher and rights holder of this work is Dutch National Database of Flora and Fauna (NDFF). This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License.

GBIF Registration

This resource has been registered with GBIF, and assigned the following GBIF UUID: c3dcff9e-1620-4fe0-a2f4-fd4086599c27.  Dutch National Database of Flora and Fauna (NDFF) publishes this resource, and is itself registered in GBIF as a data publisher endorsed by Netherlands Biodiversity Information Facility.


Metadata; Observation


Who created the resource:

Dirk Zoetebier
Data manager
Sovon Dutch Centre for Field Ornithology NL

Who can answer questions about the resource:

Who filled in the metadata:

Who else was associated with the resource:

Henk de Vries
Node manager NLBIF
NLBIF (Netherlands Biodiversity Information Facility) P.O.Box 9517 2300 RA Leiden NL

Geographic Coverage

The Netherlands

Bounding Coordinates South West [50.736, 3.318], North East [53.521, 7.207]

Taxonomic Coverage

more or less common winter birds

Class  Aves (birds)

Temporal Coverage

Formation Period 1978-current

Additional Metadata

Alternative Identifiers https://ipt.ndff.nl/resource?r=14_204_ptt