Broken Blood Feathers
   How to attend to a broken blood feather in cockatiels and provides a link on how to find an avian vet.
   http://www.cockatielcottage.net/feathers.html

Common Skin and Feather Disorders in Pet Birds Part I
   Many diseases and disorders can affect your birds skin and feathers, including mites, baldness, cysts, behavioral feather picking, polyfollicles, and brown hypertrophy.
   http://www.birdsnways.com/wisdom/ww48eiv.htm

Feather Picking and Self-Mutilation in Companion Birds
   Defines this destructive behavior, causes, contributing factors, and recommendations.
   http://www.usask.ca/wcvm/herdmed/applied-ethology/behaviourproblems/selfmutilbird.html

Feather Plucking In Parrots
   Discusses some common causes such as malnutrition, psychological stress, parasites, and internal organ disease in relation to this behavioral problem in birds.
   http://www.2ndchance.info/selfpluck.htm

Knemidokiptic Mange in Pet Birds: Scaly Face and Scaly Leg Disease
   Describes the lesions of the skin produces by mites and the treatment options for it.
   http://edis.ifas.ufl.edu/VM022

Research on Feather Diseases - Part I
   Provides results on budgerigars. Discusses pulpitis, mites, cysts, stress marks, and feather dusters. Part II describes tumors, multifeathers, distortions, splits, follicles, vitamin deficiency, and feather loss.
   http://www.budgerigars.co.uk/diseases/feather.html

Veterinary Practice News - Help for Feather Picking
   Article discusses behavioral clues, physical factors, and testing.
   http://www.vetpracticenews.com/vpn/detail.aspx?aid=19533&cid=3874&category=