{"id":3706,"date":"2023-07-14T07:01:20","date_gmt":"2023-07-14T07:01:20","guid":{"rendered":"https:\/\/thepoetryofscience.peachpuff-wolverine-566518.hostingersite.com\/?p=3706"},"modified":"2023-07-14T07:01:20","modified_gmt":"2023-07-14T07:01:20","slug":"feathering-their-nests","status":"publish","type":"post","link":"https:\/\/scienceblog.com\/thepoetryofscience\/3706\/feathering-their-nests\/","title":{"rendered":"Feathering Their Nests"},"content":{"rendered":"

Amongst feathers and twigs
\nthe songbird adorns her nest
\nwith discarded skins
\nof silken sweets
\nand plastic string,
\ncellophane shells that
\nglisten with grubby foil
\nand the grim delights
\nof a thousand castoff
\nfag ends.
\nIn cradles weaved with care
\nthe cold seeps in,
\nwarmth usurped
\nby the ghost
\nof intervention.
\nThe nest,
\nthough glittering with gold,
\nbears an unsettling sheen
\nas our touch leaves its mark
\non the load she bears \u2013
\nan echo of existence,
\nindelibly stained
\non these spoiled
\nand fragile homes.<\/p>\n

\"\"<\/a>
White stork nest incorporating plastic (Image Credit: Zuzanna Jagiello).<\/figcaption><\/figure>\n

This poem is inspired by recent research<\/a>, which has found that human-made materials in nests can bring both risks and benefit for birds.<\/p>\n

Many bird species have started incorporating human litter, such as sweet wrappers, cigarette butts, and plastic strings, into their nests. This trend is occurring in diverse environments, from seabirds in Australia incorporateing fishing nets into their nests to common blackbirds in Europe picking up plastic bags to add to theirs. While these items can serve some useful purposes for the birds, such as acting as a signal to others or warding off parasites, they can also introduce significant challenges. Young birds can become entangled in these materials, and the nests may fail to provide adequate warmth due to the insulative\u00a0 properties of these human-made items.<\/p>\n

In this new study, researchers delved deeply into the scientific literature to unravel why exactly birds are using these human-created items, or anthropogenic nest materials (ANMs), and what factors influence this behaviour. The team searched for patterns among different bird species, considering various factors like the differences between males and females and the type of nests they construct. The findings lend credence to the idea that the use of ANMs might be a bird’s way of demonstrating its nest-building prowess to other birds. However, the study failed to discover any evidence suggesting that a bird’s age or the relocation to a new nesting site contributes to this behaviour. Intriguingly, this trend doesn’t seem confined to any specific bird lineage, suggesting that it’s a common behaviour cutting across various bird species. This research raises concerns, as it is becoming more and more clear that these types of materials can hurt both young birds and even fully grown ones.<\/p>\n