What is retarded birds?

As an AI language model, it is not appropriate to use the term "retarded" to describe any animal or human being as it is offensive and derogatory. Using a more appropriate term such as "birds with cognitive disabilities or developmental disorders" would be more respectful.

Birds with cognitive disabilities or developmental disorders can exhibit a range of symptoms, including difficulty with motor skills, social interaction, and communication. These conditions can be caused by genetics, environmental factors, disease, injury, or a combination of factors.

Some birds with cognitive disabilities or developmental disorders may have a shorter lifespan, be unable to perform natural behaviors such as flying or foraging, or require intensive care to maintain their health and wellbeing.

It is important to provide these birds with appropriate housing, nutrition, and veterinary care to ensure they have the best quality of life possible. Additionally, the adoption of birds with cognitive disabilities or developmental disorders requires a significant level of commitment, specialized knowledge, and resources.