ANM Bird egg collection

Latest version published by University of Agder on 03 October 2022 University of Agder
Publication date:
03 October 2022
Published by:
University of Agder
CC-BY 4.0

Download the latest version of this resource data as a Darwin Core Archive (DwC-A) or the resource metadata as EML or RTF:

Data as a DwC-A file download 1,239 records in Norwegian (206 KB) - Update frequency: unknown
Metadata as an EML file download in English (6 KB)
Metadata as an RTF file download in English (6 KB)


The bird egg collection at the Natural History Museum, Agder University, holds 1190 journal numbers of single eggs or clutches, but also a substantial number of eggs not yet digitally registered. The majority of bird eggs is a 20+ years series of Kestrel (Falco tinnunculus) eggs from SE Norway (687 entries with more than 1100 eggs). Each entry specifies conditions for collecting (single egg from clutch, whole clutch, failed, abandoned or unhatched eggs), date and locality, total clutch size and number of chicks, collector and determinator. Weight, length and with measurements are also given for a majority of the eggs.

Data Records

The data in this occurrence resource has been published as a Darwin Core Archive (DwC-A), which is a standardized format for sharing biodiversity data as a set of one or more data tables. The core data table contains 1,239 records.

1 extension data tables also exist. An extension record supplies extra information about a core record. The number of records in each extension data table is illustrated below.

Occurrence (core)

This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.


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 University of Agder. 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: ac3608fe-71ff-43b4-84da-8b284d5b7b47.  University of Agder publishes this resource, and is itself registered in GBIF as a data publisher endorsed by GBIF Norway.


Bird eggs; unhatched eggs; weight; measurements.; Specimen


Roar Solheim
  • Metadata Provider
  • Originator
  • Point Of Contact
Senior curator
University of Agder
Vidar Bakken

Geographic Coverage

Bird eggs primarily from Norway, but some samples from Sweden, Greenland and UK.

Bounding Coordinates South West [54.368, -57.305], North East [81.672, 34.102]

Sampling Methods

Eggs collected until 1995 usually as whole clutches. Eggs collected after 1995 only as unhatched or abandoned eggs. Main focus on seabirds (Svalbard) and kestrel (Falco tinnunculus).

Study Extent Unhatched eggs collected during nestbox studies of owls and falcons. Seabird eggs collected during monitoring projects on Svalbard (2000, 2003, 2006).

Method step description:

  1. Eggs are weighed, measured (length, width) and content removed through one blowhole. Content usually described for each egg (since 2000).

Additional Metadata

Alternative Identifiers ac3608fe-71ff-43b4-84da-8b284d5b7b47