u/Creative-Yak2131

When I bring it close to my ear when it does this, I can hear a sound which goes like "tick tick tick". I'm worried, do all birds do this? Also, could it be because of the heat? The place where I'm from is pretty hot coz of summer. It does this after flying or doing some physical activity. It used to do it rarely, now it's getting quite frequent. It is almost 2 and half years old now. And it is very active. Whenever it sees someone it likes, it flies a lot, plays with them, but it does stop to do that inbetween. I just wanna know if this is normal, and if not, if this is common and can be cured.