Hạn chế tiếp xúc với chim. Chuẩn bị dụng cụ. Quan sát chim. Chuẩn bị khăn giấy và hộp bìa cứng. Ẵm chim. Đặt chim vào hộp và đóng nắp lại. Kiểm tra chú chim định kỳ. Thảm chim đi. Liên lạc với chuyên gia thú y.

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More likely than not the bird has sustained a concussion, in which case it should be removed from all stimuli. Anything else will make its condition worse. If it has sustained injuries to its limbs, it will require professional assistance anyway. If birds frequently collide into your windows, be sure to keep on hand a towel, a small box (a shoe box is ideal), gloves, and, if possible, safety glasses Often the bird will only need a couple of minutes to recover. You should stay to watch the bird and ensure that no predators attack it before it recovers. If it does not recover within five or six minutes you should be more proactive.  If you are not comfortable handling a bird you should call the local bird or wildlife rehabilitation center immediately. These can be located with the Wildlife Rehabilitation Information Directory: http://wildliferehabinfo.org/Contact_A-M.htm. If the bird has a shoulder injury it might be able to fly for short distances horizontally. However, it will not be able to lift its wings above its shoulders or obtain any elevation in its flight. Shoulder or wing injuries will require skilled medical assistance and months of rehabilitation. If the bird seems to have extensive damage to its limbs, call the local bird or wildlife rehabilitation center.  Conversely, if the bird seems unconscious the bird has sustained head trauma and will merely need a safe place to relax. Removing all stimuli will significantly increase the probability of the bird recovering from a potentially fatal concussion. You want a small box that will block all incoming light. To make it comfortable you should line it with a paper towel or a soft cotton cloth. If the bird is larger, you can place a towel on the bottom of a paper bag and staple or tape the top the bag, leaving enough of a crack to allow for airflow. However, if the bird is large enough to potentially injury you, you should consider avoiding contact and calling for professional assistance immediately. Use gloves and safety goggles if possible. Hold the...