ruby-crowned kinglet

A small North American songbird (Corthylio calendula) with a distinctive red crown patch on the male, known for its energetic behavior and complex, warbling song.

• 🇨🇳一种小型北美鸣禽（Corthylio calendula），雄鸟头顶有一块鲜艳的红色斑块，以活泼好动和复杂婉转的鸣声著称。

1. Small songbird C1 formal american

   A very small, active North American songbird (Corthylio calendula) with a distinctive red patch on the crown of the male's head.

   • A ruby-crowned kinglet flitted through the pine branches.
   • We spotted a ruby-crowned kinglet during our morning birdwatching walk.
   • The male ruby-crowned kinglet's red crown is often hidden unless it is excited.

   🇨🇳红冠戴菊