Author 'D.marsim' (Id 172218 ) : I copy two Tiercelet (male) on the branches of common yew. Females are three times larger than the males and this is why called them tiercelet. Their weight is approximately 200 gr, they remain at voliere because he used a reproduction.
Females lay 5 a 6 eggs that they incubate for 30 a 35 days. After 25 days of life small start a steal in the branches of trees but are still fed by their parents until they catch their own food.