I give my chicks a “baby cut” which is the first five primary feathers of each wing. I only cut off a very small amount… about 3/4”. This allows the baby to learn to use its wings which is very important, and not fall like a stone and get very hurt in the abdomen. As the bird gains growth and strength, two more feathers can be trimmed for a total of seven.
As the bird matures it will become stronger. If it is able to fly up to picture frames and curtain rods, or becomes nippy, I repeat the trim, taking more length off the seven feathers, but so short as to encompass the secondary feathers!
Always trim both wings, equally. When playing with your pet, handle the wings each time, so your baby becomes very accustomed to having its wings held open.
For more information, please visit my blog post on this topic, HERE