A few nice pet bird for sale images I found:
(ViewSonic) Birds for sale
Image by Omar Chatriwala
A multi-colored bird (suspected to be a Gouldian finche, like in the ViewSonic logo, as Patrice, T. suggested below) closes its eyes for a moment as locals and tourists pass its display cage in Souq Waqif.
Caged Bird
Image by Nate Robert
Pet bird for sale, Mongkok Bird Market, Hong Kong
Bird Cages for Sale near WangfuJing Street, Beijing
Image by IvanWalsh.com
This is the largest shopping street in Beijing. Some photos taken at pet market nearby.