Let the third row run off the page. You can't draw what you can't see.
The forth row of feathers is almost all separated from each other and they run off the page too.
Look at the other wing. It isn't in such perfect lines. The staccato pattern adds variety.
Put in the three rows between the arm and the body using the shape lines you drew before.
Some of the feathers are in a row.
THE ART POEM