The average life span of wenbirds is about 8 years, and a few can live to 10 years old. Wenniao is in good health and hardly gets sick.
Wenniao, also known as Java sparrow, once harmed local crops in its origin and was regarded as a pest. Now, after bird people's breeding, apart from the original gray language, it has successfully propagated into white language and camel language. There are new varieties at present. The language of black and silver is actually not silver, but very light gray. Its body color changed from gray in the original gray language to light gray, and the original black area became medium gray.