Articles. The thread on the yellow parrot's head is dark yellow and thin, so I call it "rhubarb". The line on the blue parrot's head is dark blue and thick. I call it "Little Blue". The budgerigar's mouth is very different from other birds. It hooks down. The blue parrot also has a black spot on its mouth, like two small moles.

Budgerigars are very active and will not be idle for a moment. They always dress themselves up, often spread their wings and comb their feathers, and sometimes comb them out one by one. I like to fly, jump and scream all the time after dressing up.