Thank you George for this great cover from Taiwan. The stamps used were issued in 2007 and 2008.
Varied Tit (Cyanistes varius): The stamp was released in 2007. It can be found in forests in southeastern Russia, Taiwan, Japan, Korea and northeastern China. It feeds on insects and seeds and it has nine subspecies.
Yellow-throated or Grey-chinned Minivet (Pericrocotus solaris): The stamp was issued in 2007. It lives in forests in China and Taiwan. It has eight subspecies.
Long-tailed or Rufus-backed Shrike (Lanius schach): The stamp was issued in 2008. It can be found in scrubby bushlands the Indomalayan ecozone and it migrates to southern areas. It eats large insects, lizards, small birds and rodents. It has nine subspecies.
Bronzed Drongo (Dicrurus aeneus): The stamp was released in 2008. It lives in the forests of south and southeast Asia. It feeds on insects.