i live in dist 2 and work at saigon hi-tech park (dist 9). unfortunately, i dont see any bird in the hcmc sky. when i was a child, i used to hear the birds chirping in the morning in my balcony. it gave a great feeling. but in hcmc, i am missing that. i saw that outside some buddhist temples people sell the birds. but i am yet to see a bird flying. not even the scavengers!