[Haftdrarp]

Well I recently bought 2 male budgies for my younger brother and he enjoys playing with them, but since i just bought them 3 days a go they are still a little shady around us and their new environment. They don't really sing to be honest and I want them to be comfortable, I started playing Surah An Naml around them and they started to become more comfortable and even started to eat out of my hand (a miracle all in itself), so i was wondering what other Surah/s and verses can I play around them so they start to feel more comfortable?

Many thanks in advance.