The first one is not sure whether it is "its", and the second one should be "wing"
Do you have a picture of Zhang Zi? Some painters have irregular inscriptions! Besides, there are too many kinds of grass methods! This needs screening! Say words that are not commonly used! Many painters make up their own words! For example, Wang Duo in the Ming Dynasty often made Chinese characters. After Wang Duo, many people learned from him and wrote according to his cursive style. This will naturally last for several years! Part of the cursive script continues like this!
It should be the signature of Zhang, a modern flower and bird painter.