Ultraviolet Reflection of Berries Attracts Foraging Birds. A Laboratory Study with Redwings (Turdus iliacus) and Bilberries (Vaccinium myrtillus)

Unlike humans, birds perceive ultraviolet (UV) light (320 to 400 nm), a waveband which is known to play a role in avian mate choice. However, less attention has been paid to the role of UV light in avian foraging. Some blue, violet and black berries reflect UV light. The colour of berries might be an […]