How about using a red-crowned crane as an avatar?

Red-crowned crane is a symbol of longevity since ancient times, and now it is a national first-class protected animal. The meaning of crane contains the fusion of human spiritual civilization, history, culture and art, which brings people an elegant and peaceful atmosphere, symbolizes longevity and peace, and is endowed with some beautiful meanings. The red-crowned crane symbolizes longevity.

Red-crowned crane is a kind of crane, named after the red crown on its head. It is a bird species unique to East Asia. Because of its elegant posture and bright colors, it has the meaning of auspiciousness, loyalty and longevity in the culture of this area.