Finches is group of birds much like our Sparrows, Munias etc.
In comparison to the earlier posts, these birds looked real because they are real! My colleagues who saw these photos asked me the same questions if they are fake?
It wasn't easy to take their photos through the meshed enclosure and I had to discard so many photos showing the mesh more than the birds. In fact, if you look at these photos closely, you can still see the remnants of the mesh interfering with the quality of the photos.