In this video you will use essential nodes in Houdini to create a procedural feather.

This will start simple by creating a line and bending this. You can always go back and change the bend amount or the line length to your liking.
After that comes the scatter of the hairs. For this you will need to define the scaling and the rotation of each hair. You will that with ramps it will be easy to control and tweak how the feather will look.

Timestamps
00:00 Base shape
02:15 Scatter Hair
04:48 Define scale
07:46 Add rotation
09:08 Random rotation
15:05 Hairs on both sides
16:03 Random Scaling
18:14 Final tweaks