Browsing through the links found by google on the issue blender and feathers did not provide me with what I searched. For completeness sake let me list them here in the case it is what you are looking for:
Forum entries and other listings:
- Birds` feathers???
- Need modelling feather tutorial
- Static particle fur library
- Modelling a realistic feather
- Cartoon Montezuma
Ready made feather models:
Tutorials:
- Blender Hair/Fur & Feathers (Blender 2.4x)
- Modelling Feathery wings