Integrated Publishing Toolkit(IPT)

free and open access to biodiversity data

Chinese Wild Bird Federation Bird Records Database

Latest version published by Taiwan Endemic Species Research Institute on Jun 18, 2019 Taiwan Endemic Species Research Institute

Chinese Wild Bird Federation Bird Records Database (CWBF Database), the first and the largest web-based biodiversity citizen science database of Taiwan, has collected a large number of birdwatching checklists provided by more than 3,000 users. From 1972 to 2017, the CWBF Database accumulated 1,853,589 bird records within 102,716 checklists, covering nearly all area and almost 90% of the 653 bird species of Taiwan Island and its outlying islands.

Data Records

The data in this sampling event 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 102,716 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.

  • Event (core)
    102716
  • Occurrence 
    1853589

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.

Downloads

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 102,716 records in Chinese (37 MB) - Update frequency: as needed
Metadata as an EML file download in English (18 KB)
Metadata as an RTF file download in English (15 KB)

Versions

The table below shows only published versions of the resource that are publicly accessible.

How to cite

Researchers should cite this work as follows:

Chinese Wild Bird Federation, Lin MM, Chen WJ, Lin DL, Ko CJ, Lin RS, Ding TS (2018): Chinese Wild Bird Federation Bird Records Database. v1.4. Taiwan Endemic Species Research Institute. Dataset/Samplingevent. http://ipt.taibif.tw/resource?r=cwbfbrd&v=1.4

Rights

Researchers should respect the following rights statement:

The publisher and rights holder of this work is Taiwan Endemic Species Research Institute. 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: 78fc169f-cef0-4054-88ec-9b694bcbf6e4.  Taiwan Endemic Species Research Institute publishes this resource, and is itself registered in GBIF as a data publisher endorsed by Taiwan Biodiversity Information Facility.

Keywords

Aves; bird observations; birdwatchers; citizen science; long-term population trends; Samplingevent

Contacts

Who created the resource:

Chinese Wild Bird Federation
Juridical Association
Chinese Wild Bird Federation No.3, Ln. 36, Jinglong St., Wenshan Dist., Taipei City 116, Taiwan (R.O.C.) 11683 Taipei City TW +886 2 86631252
http://www.bird.org.tw
Mu-Ming Lin
Research Assistant
School of Forestry and Resource Conservation, National Taiwan University No.1, Sec. 4, Roosevelt Rd., Da’an Dist., Taipei City 106, Taiwan (R.O.C.) 10617 Taipei City +886 2 33664644
Wan-Jyun Chen
Associate Researcher
Endemic Species Research Institute No.1, Minsheng E. Rd., Jiji Township, Nantou County 552, Taiwan (R.O.C.) 55244 Nantou County TW +886 49 2761331 x256
Da-Li Lin
Associate Researcher
Endemic Species Research Institute No.1, Minsheng E. Rd., Jiji Township, Nantou County 552, Taiwan (R.O.C.) 55244 Nantou County +886 49 2761331 x252
Chie-Jen Ko
Assistant Researcher
Endemic Species Research Institute No.1, Minsheng E. Rd., Jiji Township, Nantou County 552, Taiwan (R.O.C.) 55244 Nantou County +886 49 2761331 x315
Ruey-Shing Lin
Associate Researcher
Endemic Species Research Institute No.1, Minsheng E. Rd., Jiji Township, Nantou County 552, Taiwan (R.O.C.) 55244 Nantou County +886 49 2761331 x250
Tzung-Su Ding
Associate Professor
School of Forestry and Resource Conservation, National Taiwan University No.1, Sec. 4, Roosevelt Rd., Da’an Dist., Taipei City 106, Taiwan (R.O.C.) 10617 Taipei City TW +886 2 33665263

Who can answer questions about the resource:

Tzung-Su Ding
Associate Professor
School of Forestry and Resource Conservation, National Taiwan University No.1, Sec. 4, Roosevelt Rd., Da’an Dist., Taipei City 106, Taiwan (R.O.C.) 10617 Taipei City TW +886 2 33665263
Ruey-Shing Lin
Associate Researcher
Endemic Species Research Institute No.1, Minsheng E. Rd., Jiji Township, Nantou County 552, Taiwan (R.O.C.) 55244 Nantou County TW +886 49 2761331 x250

Who filled in the metadata:

Mu-Ming Lin
Research Assistant
School of Forestry and Resource Conservation, National Taiwan University No.1, Sec. 4, Roosevelt Rd., Da’an Dist., Taipei City 106, Taiwan (R.O.C.) 10617 Taipei City TW +886 2 33664644
Chie-Jen Ko
Assistant Researcher
Endemic Species Research Institute No.1, Minsheng E. Rd., Jiji Township, Nantou County 552, Taiwan (R.O.C.) 55244 Nantou County +886 49 2761331 x315
Da-Li Lin
Assistant Researcher
Endemic Species Research Institute No.1, Minsheng E. Rd., Jiji Township, Nantou County 552, Taiwan (R.O.C.) 55244 Nantou County TW +886 49 2761331 x252
Wan-Jyun Chen
Assistant Researcher
Endemic Species Research Institute No.1, Minsheng E. Rd., Jiji Township, Nantou County 552, Taiwan (R.O.C.) 55244 Nantou County TW +886 49 2761331 x256

Who else was associated with the resource:

Custodian Steward
Endemic Species Research Institute
Government Agency
Endemic Species Research Institute No.1, Minsheng E. Rd., Jiji Township, Nantou County 552, Taiwan (R.O.C.) 55244 Nantou County TW +886 49 2761 331
https://tesrieng.tesri.gov.tw/show_index.php

Geographic Coverage

CWBF Database is a nationwide database which covered the island of Taiwan, its offshore islands, and surrounding seas.

Bounding Coordinates South West [10.378, 114.365], North East [26.382, 123.594]

Taxonomic Coverage

A total of 586 species and 2 subspecies, as well as 16 species combinations and 3 domestic types, were recorded, covering about 90% of the bird species have been recorded in Taiwan. The classification system followed the 2018 edition of the eBird/Clements taxonomy (Clements et al. 2018).

Class  Aves (Birds)

Temporal Coverage

Start Date / End Date 1972-07-08 / 2017-04-09

Project Data

Integrating the historical bird records of CWBF Database, and converting the records to eBird database format and Darwin Core.

Title Chinese Wild Bird Federation Bird Records Database Integration Project
Funding Endemic Species Research Institute, Taiwan.

The personnel involved in the project:

Principal Investigator
Tzung-Su Ding
Processor
Mu-Ming Lin

Sampling Methods

Each provided birdwatching checklist represents one sampling event. From July 8th, 1972 to April 9th, 2017, a total of 102,716 sampling events were conducted. The main sampling methods include transects, point counts, and area searches.

Study Extent Surveys were conducted by birdwatchers and local birdwatching societies between 1972 and 2017 throughout the land and sea under the jurisdiction of the government of the Republic of China (widely known as “Taiwan”), including Taiwan Island and its outlying islands, which are scattered across Taiwan Strait, Pacific Ocean, and the South China Sea.
Quality Control The checklists with abnormal sampling time, doubtful or overly vague spatial information, as well as uncertain species identification, had been regarded as invalid data after confirmation in multiple ways and eliminated from the publishing version. The contents of all versions during data conversion were kept to track the modifications.

Method step description:

  1. During the surveys, birdwatchers detected and identified bird species with naked eyes, through binoculars and telescopes, or by listening to the bird sounds, and filled out the checklists with species, number of individuals, location, date, start time, duration, sampling protocol, and survey effort.
  2. Birdwatchers submitted their checklists to CWBF Database via a web form that validated the content and format of the entered records. To ensure the quality of data, each checklist was requested to at least provide the information of survey location, date, time, and the completeness of species lists (users could choose to submit a complete checklist, including all the species detected, or an incomplete checklist with only certain species they concerned).
  3. We obtained the raw data from CWBF database and standardized it according to the Darwin Core format. The original contents were kept as much as possible during the data conversion unless there was an obvious mistake. Most of the checklists lack precise coordinates information because the CWBF database had requested only textual descriptions of survey location for a long time. Therefore, we inferred and restored the approximate area where each event took place according to the description, then located the latitude and longitude at a vicinal bird-watching hotspot, the location with suitable habitat, or the geographical center of the area. The uncertainty of coordinate inference was within 1000 meters. For those checklists stating further details about the sampling methods, we looked into the descriptions, defined the practices as transects, point counts, or area searches, and quantified the corresponding sampling efforts with transect length, time duration, or area covered.

Bibliographic Citations

  1. eBird Basic Dataset. Version: EBD_relMay-2017. Cornell Lab of Ornithology, Ithaca, New York. May 2017.Fang, W.-H. 2015. Commemorate the pioneer of bird occurrence database, Mr. Guo-Dong Lin. Yuhina Post 256:19-20. (in Chinese)

Additional Metadata

Alternative Identifiers http://ipt.taibif.tw/resource?r=cwbfbrd