A Peacock 🦚

1. A male peafowl, especially Pavo cristatus, notable for its brilliant iridescently ocellated tail.
2. A peafowl (of the genus Pavo or Afropavo), either male or female.
3. A vainglorious person [from the 14th c.].
4. (entomology) Any of various Asian species of papilionid butterflies of the genus Papilio.

peafowl (ornithology)