About sadtuna.org Credits

Bird stamps, taxonomy

Bird theme stamps identifications based on:

• works of Kjell Scharning from birdtheme.org
• List of birds on stamps , Wikipedia [Accesed 07/06/2013]
• works of Chris Gibbins from bird-stamps.org

Taxonomy information, scientific names:

• Gill, F & D Donsker (Eds). 2013. IOC World Bird List (v 3.4). Available at http://www.worldbirdnames.org [Accessed 07/06/2013].
• ITIS: Retrieved 09/10/2010, from the Integrated Taxonomic Information System on-line database, http://www.itis.gov.

Images

Species thumbnails:

• Species pages, Wikipedia [Accesed 07/06/2013]

Stamp images:

• If not explicitly stated otherwise, all stamp image in this site is a photo / scan of an used stamp from my personal collection.
• About individual stamp designs: check Wikipedia's licensing page: Commons:Stamps/Public domain

Primary sources for country profiles:

• AJ's Stamp Issuing Entities
• Stamp Issuing Entities List by David A. Wyatt
• Stamp World History by Gerben van Gelder
• List of entities that have issued postage stamps by Keijo Kortelainen
• Stamp Issuing Entities Of The World by linns.com
• Dead Country Stamps and Banknotes by Michael Adkins
• ISWSC World Wide Stamp Identifier by The International Society of World Wide Stamp Collectors
• W. Raife Wellsted, Stuart Rossiter. The Stamp Atlas. New York: Facts on File, 1986
• Ludovík Mucha, Bohuslav Hlinka, Kenneth F. Chapman, ed., The Orbis Philatelic Atlas. London: Orbis, 1987
• David Crystal, ed., Penguin Book of Facts. Penguin, 2008
• Universal Postal Uninon's Member countries page [Accessed 18/05/2014]. You can check every countries status pages at UPU Postal entitities status page
• hexorx/countries Ruby gem of Country object
• www.icondrawer.com Large country flags
• github.com/tkrotoff/famfamfam_flags Small country flag
• github.com/factbook/factbook World factbook published by the Central Intelligence Agency (CIA)
• World Statesmen.org

Abbreviations

Stamps

Species

Icons