天堂鳥因其獨特的交配展示而聞名，但最近的一項研究發現，82% 的天堂鳥具有生物螢光。大多數雄鳥的頭部、頸背、喙，及羽毛都有生物螢光特性，有的甚至腿、腳及尾部都有。部分物種的雌性胸部和腹部會有螢光羽毛，但不如雄性明亮。對於生物螢光的研究有限，但估計雄性可能使用生物螢光來求偶，而雌性則用作偽裝和溝通。

Bird-of-paradise are known for their amazing mating displays, but a recently study discovered 82% of these birds are biofluorescent. Most of the males have fluorescent heads, napes, bills and plumes, some even with fluorescent legs, feet and tails. Females of some species have fluorescent feathers on their chest and belly, but are less bright than the males. More studies are needed but it’s possible that males use the biofluorescence for mating display and females for simultaneous camouflage and communication.

https://www.sciencealert.com/most-birds-of-paradise-are-secretly-biofluorescent-study-finds