Male bowerbirds are renowned for constructing intricate tunnels from twigs and decorating them with the most colorful items they can find—from berries to shiny bits of trash. When a female arrives at his impressive ‘bachelor pad’, the male tries to dazzle her by tossing in his shiniest finds, often leaving it up to chance which objects he ends up showcasing.

However, a new study reveals that urban development has significantly changed their choice of decorative items. In an experiment conducted over the breeding season in 2023, researchers from the University of Exeter found that bowerbirds living in towns and cities were more likely to incorporate bright, man-made objects into their displays compared to those in rural areas. This suggests that urbanization might be altering these birds’ traditional courtship rituals.

The team observed 61 male great bowerbirds at two sites: the Dreghorn Cattle Station in Queensland and the city of Townsville. They meticulously recorded the decorations, both visible and under UV light (since bowerbirds can see ultraviolet), noting that urban birds often preferred items like plastic toys or colorful bottle caps over natural materials.

These findings not only shed light on how environmental changes can influence animal behavior but also hint at a fascinating parallel with human consumption patterns. Just as we are drawn to the latest gadgets and flashy accessories, these bowerbirds seem to be lured by bright, shiny urban debris they find in their surroundings.