How do you know that the parrot pair is successful

Will the parrot be fighting after successful pairing, and it is very close.This kind of bird can be artificially reproduced, such as Maoma, Tiger Pagas, Xuanfeng Parrot, etc., but there are also some wild varieties that cannot be reproduced.Usually this bird has its own specific reproduction period. After entering the reproduction period, the male and female birds need to be paired to lay eggs. Usually, the small parrot has a stronger reproduction ability, and the large parrot breeding is more difficult.