A team of researchers from Yale University demonstrated that hummingbirds really are the champions of the bird world when it comes to attention-grabbing colours. According to the team’s findings, published in the journal Communications Biology in 2022, the diversity of colours found in hummingbirds they examined exceeds that of all other bird species combined. And not just by a little — when hummingbirds were added to an existing inventory of the so-called bird colour gamut (the full range of colors that birds can produce and detect), they increased that range by around 56%.