Thanks for your comments

!! here is the explanation, first i modeled another bird, the amazona auropalliata, here is my first refference:
here is the wire and a shaded model:
i tried shag hair to make the feathers and got excellent results, here are 2 test renders:
after all this progress, i received the news that the type of bird was changed at the time of shooting the scene to the actual modeled bird (amazona ventralis) so i remodeled the bird and re textured it in 2 days.i got rid of the shag hair and used old style feathers modeled with alpha masks for the opacity because of the little time. and here is the final wire: