“Birds chirping around you is a beautiful realization that life is incredibly good. Let this sound be a gentle break in your routine.”
Hiral Nagda
Adult birds will have fully developed feathers
First molting occurs at around 4 months of age. Then every year once or twice. Molting is the process of losing existing feathers and gaining new ones at the same time. At the time of molting birds need lot of nutritious food to help keep up with the loss of energy.
Adult birds take bath daily in general, some does occasionally. It helps the feathers remain clean and avoid skin becoming dry.
They need balanced diet which includes not just seeds but also pellets, fruits, vegetables and other supplements.
There are toys to trim the birds beak which the bird does itself naturally. It is good for them
Similarly there are natural nail trimming toys too.

Some birds tend to talk. Budgies, Cockatiels are some of the varieties in smaller sized birds that can talk.