Coping With The Loss of a Pet Traveling With Your Cockatiel Seeds Vs. If your cockatiel is normal and healthy, it will preen and groom by cleaning its feathers, Roosters crow when the sun rises or sets. Many cockatiels scream to greet the day and to wish everyone a good night. The cockatiel yell or scream can also be a greeting or an expression of discontent. A cockatiel that screams all day or all night is a stressed cockatiel.
Stress can contribute to illness.
If your cockatiel only screams at sunrise and sunset, remove the food six to eight hours before the onset of screaming and offer it just before the loud vocalizations begin. It is important that the cockatiel not be fed in response to the screaming. If the cockatiel is not hungry, you can try offering a toy, giving more exercise, or moving the bird closer to you before the screaming starts. If your cockatiel screams when you return home, go directly to the cockatiel and provide attention and perhaps a favorite toy that was withheld during the day. Moving the cockatiel to a new location or isolating it from the family's activities may cause screaming.