Common names of hummingbirds, such as ruby, sapphire, and emerald, aptly testify to the glittering reds, blues, and greens that adorn these jewellike birds.
Koolibride rahvakeelsed nimed, nagu rubiin, safiir ja smaragd, annavad sobivalt tunnistust sellest, et neid kalliskivisarnaseid linde ehivad helkivad punased, sinised ja rohelised värvid.