If you’ve ever noticed strange lines running perpendicular (across) the shafts of your birds feathers these are what are called “stress bars”.
They are particularly noticeable when your bird is molting and are harder to see if the feathers are still on the bird.
- Analyze your bird’s diet – a bird on a high seed/treat diet could mean your bird is not getting enough vitamins and minerals.
- Evaluate your bird’s living situation especially the arrangement of toys and accessories in their cage.
- Consult an avian vet.