I store my stamps by country, and I use the Leuchtturm (Lighthouse)
Vario stock system. This works fine for me. Arranging and mounting my stamps
by species requires too much work for me with the scope of my collection.
But my interest is in the birds. Therefore I would like to see my birds on stamps
presented by species in zoologically systematic order. I do, however, find
arranging and re-arranging my birds in my database a good substitute.
Beeing a member of a birdstamp society is a must if you want to stay
informed on all aspects of bird stamp collecting.
Aves Philatelicae Scandiae
This is a link to a page written in Swedish. From APS you will receive a
journal, Swedish, Norwegian, Danish, 6 times a year. New stamp issues are presented in Norwegian/English.
The Bird Stamp Society
International society. The magazine "Flight" is sent to members quarterly.
These are my main sources for information about new bird stamp issues
New issues service from stamp dealer
Journals from APS and the BSS
Gibbons Stamp Monthly
Yvert & Tellier Catalogue Supplement
and many websites on the Internet.