I recommend pinning the parts to the head and body first. This will give you a better idea of where you'd like the parts to be attached before actual assembly.
Attach the beak between R13 and R15, in between the eyes.
Attach the feet between R44 and R45 of the body at slight diagonal.
Weave in all the excess pieces of yarn into the body. Please be aware that amigurumi contains small pieces and can be dangerous to children. If you're selling this stuffed ami, please place a warning and also state that safety eyes are not recommended for anyone under the age of 3.