The multicoloured feathers look impressive when they're puffed up, but without the feathers, the peacock looks just like an ordinary bird.
Wikipuffery is the
puffing of a subject or the addition of praise-filled adjectives and claims. They may be there to exaggerate the
notability of the article subject to avoid
deletion of the article. Examples include use of adjectives as "famous", "notable", "award-winning", "acclaimed", or "influential", detailed listings of minor biographical details (including complete lists of anything related to the person or topic), and
lead paragraphs that proclaim the superiority of the subject.