Macao China Post, has commemorated the 50th Anniversary of WWF by issuing a set of four stamps on 11th of September 2011 .
The protected bird species like: Pynonotus sinensis, Streptopelia chinensis, Ixobrychus sinensis and Centropus sinensis.
The 1.50 ptcs stamp shown Pycnonotus sinensis or Chinese bulbul. The Light-vented Bulbul (Pycnonotus sinensis), is a bird and a member of the bulbul family.The bulbul is common in East Asia, including Hong Kong, mainland China, Taiwan, Korea and Japan.
The birds of Taiwan are of an endemic subspecies.The particular characteristic is the large white patch covering the nape and the sides of its black head. It also sings very brightly.the species is evaluated as Least Concern.
