- Operant conditioning, situation in training, on other domestics or your bird pet; reacting well in order to gain something positive, or to evade from something negative. Example: Directing your bird to whistle, if it mimics the action, you hand in its food. Next time, instinct to eat allows impulsive choice to obey, whatever you want it to do, a whip of your finger, or cue from your mouth. Determining the sex of an African Grey parrot will sorely depend on their physical traits: males are generally bigger in size, round eyes, have a flatter and broader head while females have longer and slender neck, small rounded head and elliptical eyes. These relatively quiet parrots have an average lifespan of 50 to 65 years and are known to feed primarily on nuts and fruits, usually supplemented by vegetables. Unlike other parrot species, parrots posses an entirely different nature which are extremely playful, gentle and sweet in temperament that is perfect for its charming personality, cleverness, clear speech, and manageable behavior. They are also quieter but are good talkers if taught and trained properly. In fact, owners of parrots often give them wooden toys to play and chew with inside their cages. Parrots however are not satisfied with just these toys. When they get the opportunity, they will chew on everything that they get their hands on. They will puncture your clothes, your furniture, even your books. Unlike any other pet, parrots never get contaminated easily being caged and are not able to stray on grounds. TYPICAL PET PARROTS There are many parrot classifications from so many kinds in various countries of origin. But there are more to a dozen of species for each type mentioned in all those actively trainable birds. After taking control of your parrot's behavior, you cannot avoid being nipped once in a while, especially if your parrot is younger and curious. Parrots must be trained not do this as habit by giving a "NO" command. You can also blow its face after biting you or giving it an earthquake shake while settled on your palm.