Pretty simple really, but you should also feel happy that your bird is stretching for you: not only does it feel good to stretch but parrots stretch as a greeting to their flockmates
This bird is trying to protect something from an intruder - you. This is most often seen with a hen and her eggs and rarely seen out of "breeding mode"
Careful, a bird that looks like this will bite, hard. This can be caused by a number of things, but most often it is "cage aggression" caused when a bird considers that something (or someone!) belongs to him or her alone. This can also be caused if you startle your bird, but you may want to try some training if it lasts.
This is a baby cockatiel's way of begging for food. If your cockatiel makes this noise he or she is not weaned yet and needs to be hand fed! If you are unsure how to do this please return the bird to the breeder until the bird is weaned or find someone to teach you how
This is the adult cockatiel's way of begging! They really are demanding little things, aren't they?
After a cockatiel gets over their fear of new items, they want to know every little bit about it. What does it look like from all angles? Is it edible? Is it a good place to sit? Can I play with it?
This is often confused with biting but is not aggressive at all and will not hurt anything. Parrots use their beak as a hand and will often use it to test something to make sure it is safe, especially when they are about to perch on something, such as your hand. They will also use their beak to grab an item if they feel unsteady
Just like with people, this is normal. However, birds also yawn to get things out of their nares (birdy nostrils), so if your bird is yawning repeatedly and does this more then once, he may have an upper respiratory infection or foreign object in his nares
Usually done by hens. This is a non-aggressive way of saying "This is mine, you can share though"
Since the state of a bird's feathers is so important to their survival in the wild, a bird can easily spend 30% of their waking hours preening
Beak grating is a sign of a satisfied and happy bird and is usually done after a good meal or good preen and right before they fall asleep. It keeps the beak in shape.
This is a scared bird that is waiting to watch what her flockmates (you) are doing before responding to whatever scared her. Just stay calm and your bird will calm down as well.
Cockatiels can be surprisingly temperature-hardy but take a while to get used to the temperature and can be hurt be extreme temperatures they are not used to. If cooling the room down is not an option provide a bowl of water to bathe in and/or spray your cockatiel with a cool mist of water
Cockatiels can be surprisingly temperature-hardy but take a while to get used to the temperature and can be hurt be extreme temperatures they are not used to. If this happens while the room is at a comfortable temperature your bird is most likely sick.
It is important for a cockatiel to get about 12 hours of deep sleep a day, but a parrot will only sleep like this when they are comfortable with the situation and don't feel like they are going to be attacked
Birds tend to nap several times a day, usually after eating. A bird that does not feel at ease will nap during nighttime rather then fall into deep sleep
Usually done by males, this is done when they see a potential mate they want, however it is not always directed at a cockatiel hen. Cockatiels have been known to fall in love with feet, hands, their own reflection, a bird of the same gender, a small animal of another species, or their favorite toy. They can be fickle though and may ignore the same item next time they see it
If your bird is doing this "dance", you have a male bird. This dance is used to get the attention of a hen they want, but unlike the other dance they might do, males rarely change their minds about the object of this dance.
Parrots regurgitate to feed their young, show their undying love for something, or if they ate too fast and got something jammed in their throat. This can be discouraged by removing breeding stimulants but if it happens very often with no noticable target, or if the bird's weight or eating habits chance while regurgitating your bird needs a vet immediately.
This is your cockatiel's not-so-subtle way of saying they want out of their cage