Egret Birds.

I was hoping to see Swiftlets in this trip, but instead I saw these Egret birds out numbered Swiftlets.
The weather was very sunny, no rain, windy and thus very few Swiftlets.

There are so many Egret birds in my area.
I was amazed by the amount of them.
I shot this video just 700 meter from my BH's location.

In the beginning of this video, we honked our car, they were frighten and flew up.
After a while, they flew back to their same spot, so we honked again.
This time they all stayed still, they knew now that the sound make no harm to them.
Clever birds!

I guess swiftlets also behave the same way.
After they learn that our move means no harm to them, they aren't afraid anymore.