Watch this 2-minute video of these baby pet birds and fall in love with their cuteness.
According to the video source, these are still baby parrots or parrotlets and they just love to huddle that is why they sat properly in line on the stuffed toy pod. Since they are still immature bird types they can be well behaved like that.
Credit: Peekaboo Parrots /Youtube
As they grow their personality may still change. Sometimes they can be aggressive too (like the last blue one on the video [see: 0:42]) especially when they discover how to use their beaks as defense, but while they are still young it would be better to show them affection and train them how to be good pet birds.