What is Cockatiel?
{{Taxobox | name = Cockatiel | status = | image = Cockatiels.jpg | image_caption = | regnum = [[Animal]]ia | phylum = [[Chordate|Chordata]] | classis = [[Aves]] | ordo = [[Psittaciformes]] | familia = [[Cacatuidae]] | subfamilia = [[Calyptorhynchinae]] | genus = '''''Nymphicus''''' | genus_authority = [[Johann Georg Wagler|Wagler]], [[1832]] | species = '''''N. hollandicus''''' | binomial = ''Nymphicus hollandicus'' | binomial_authority = ([[Robert Kerr (writer)|Kerr]], [[1792]]) | synonyms = ''Psittacus hollandicus'' <br /> ''Leptolophus hollandicus'' }} [[File:Nymphicus hollandicus MHNT.ZOO.2010.11.148.28.jpg|thumb| ''Nymphicus hollandicus'']] '''Cockatiels''' ([[Binomial nomenclature|binomial name]] '''''Nymphicus hollandicus''''') are small [[Bird|birds]] originally from [[Australia]] and are related to many other [[Cockatoo|cockatoos]]. They are the second most common bird species kept as a [[pet]]. Cockatiels can live from 10 to 25 years, depending on how [[Healthy lifestyle|healthy their lifestyle]] is, although [[Wildlife|wild]] cockatiels usually live shorter. Cockatiels have tiny feathers on their head called a [[Crest (feathers)|crest]]. The crest allows the owner to have an idea of what they are [[Emotion|feeling]]; straight up if scared or excited, flat when they're angry, and slightly curved is normal/happy. In the wild, cockatiels are prey animals, meaning there are [[Predation|predators]] that eat them. As a result, cockatiels can scare easily, especially when they meet someone or something they do not know. With enough patience and affection, an owner can tame the cockatiel and help them get over their natural fear. Like many other [[Parrot|parrots]], cockatiels are very good at climbing, and use their [[beak]] to position themselves each time. Cockatiels come in many different [[Colour|colours]], some naturally while others were specifically [[Breed|bred]]. Gray is considered to be their original colour, and is one of the most popular, along with Lutino (yellow). [[Male|Males]] have a brigh