Bananas was munching on a banana between zoo guests when i observed some small birds doing the same sort of thing. Then a big predator bird came and tried to eat the small birds.
Charlie who is head of zoo security who also saw this commented to me that some bird charity had a campaign on television (so not short of money) to make human habitat more bird friendly.
I wonder if they meant for both types of bird or just the one. Think on it.