This is the first ever inventory of all the birds found within the country, its distribution and conservation status; nationally and internationally. The first edition of the checklist was a record of all 742 species of birds in Malaysia; identifying species that occur, or have occurred, in the country as of 1 October 2004.
This second edition is a full update and includes new species occurring up to 31 December 2014. For the first time an estimation of abundance is given for each species. It replaces the 2nd edition that was published in 2010 as MSN Conservation Publication No. 10.