I managed to take this short video of the peacock dance when we were in Anuradhapura . It was so beautiful to watch .
We stayed in Ulagalla villas and they were superb with each with its own swimming pool.The next time you are in Anuradhapura you must stay in one of these beautiful villas . You can have total relaxation and the staff and the food were fantastic .We did a safari and a unique feature of that was driving in the water and having breakfast seated on the edge of the water.
Deepthie you must go there definitely and you will be able to see many birds and plenty of peacocks on the grounds as well. I will send you more photos of the birds.