Molting or the fathers have been pulled out eather way it won't fly right for a while
If the rest of the bird's feathers are fine, then the cockatiel is not unhealthy. There can be subtle differences in birds of the same species, including the length of their crest or even tail feathers. A young bird will often have a shorter crest, but it is most likely to just be the result of a slight genetic difference. A crest may also be affected during a routine moult.
If could be because it's scared if it's while you're trying to interact with it. If it's alone in the cage, it could be neutral or sleepy.The top feathers on a cockatiel's head are known as the crest, not 'crown'. The usual position of a cockatiel's crest is down; this is when it is feeding normally, or not over-stimulated in some way. A cockatiel will raise its crest when it is alarmed or excited, so if the crest is down, it simply means that life is normal, and there is nothing for the bird to be particularly excited about.
did you mean cocktail...
feathers represent flight and freedom...we'd all like to take flight and feel free from time to time, if not always...the species of feathers allowed by law reflects the persons personality or preference of choice..that comes to the question ..."Why did you pick that feather?"
The easiest solution - would be to clip its flight feathers. DO NOT attempt this yourself - as one wrong move cold mean your budgie bleeds to death ! Clipping the flight feathers prevents the bird flying any great distance - it will still be able to flutter short distances - but not prolonged flying.
Tapered feathers are feathers that narrow to a point, or taper.
No. not neccessarily. Male cockatiels usually are more vocal than females so start with that. If you still can not determine the sex. Look to see if he/she has lots of yellow around the face. If there is alot of yellow they are usually male. Then there the tail thing. Usually alot of the feathers will have the stripes but not all. If you still dont know, i suggest you take it to a vet and have it sexed.
Feathers. When you say "The parrot has beautiful plumage" you mean it has beautiful feathers.
Tapered feathers are feathers that narrow to a point, or taper.
I have a cockatiel named Petie he is smart pretty and obedient and talented
It means it's frightened. A cockatiel sitting with its back to you is not usually frightened, as a frightened bird is more likely to flap and cower in a corner, keeping its eyes on you, rather than turning its back to you, which would render it vulnerable to predation. If a cockatiel sits with its back to you, it can mean the bird is distressed or ill. It can also mean the bird is, quite simply, sulking. Cockatiels bond strongly to their owners, and if a new pet is introduced, or something unusual happens in the household, a cockatiel will sometimes react in a seemingly human way - by sulking.
I don't see how you could, but if you mean by the neck, that is a very bad idea!