A Calling Bird - Pen Drawing

Hi all, happy new week!

Here is my new art work. It's a pen drawing of a young bird perching on a tree.

In this drawing, I tried to depict it raising its head up and the mouth wide open as it called on its partner. From its posture, it shows it was desperate to get its partner back or else it could get lonely in the wild world.

The piece was done with a blue ballpoint pen on a cardboard paper. Below are my steps:

Thank you.