Dissolvable ‘Splint Paste’ Made From Egg Shells And Basil Saves Birds From Serious Injury

Every year, city wildlife faces blows from glass windows, electric lines, railings—and when birds suffer broken legs, traditional splints often aren’t practical. That’s where BirdAid…

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Every year, city wildlife faces blows from glass windows, electric lines, railings—and when birds suffer broken legs, traditional splints often aren’t practical. That’s where BirdAid comes in: a dissolvable, biodegradable “splint paste” designed to help injured urban birds recover and walk again without needing the splint to be removed by humans. Designed by Zay Kim, Chaewon Lee, and Jungmin Park, this clever kit is meant to be simple enough for non-experts to use, while still being gentle and safe for birds. The full concept is laid out on their BirdAid project page on Behance.

The splint comes as colour-coded tablets—green for minor injuries, yellow for moderate ones, and red for severe breaks. Made from a mix of eggshell calcium, agar, and potato starch, the paste is designed to harden quickly after application, offering immediate stabilisation to the bird’s injured leg. The colour tints, derived from natural powders like basil, gardenia, and beetroot, also help indicate how long each splint is intended to stay in place before breaking down on its own. That biodegradable feature is key: the splint naturally dissolves as the bird heals, meaning no need for further human contact or removal.

How BirdAid works, and why it’s so innovative

BirdAid acts like a compact emergency kit for everyday people who come across injured birds in urban spaces. The idea is that anyone, even someone without training, could help stabilise a bird’s leg in a matter of minutes. The kit includes basic tools like a crushing tool, a stir stick, and easy-to-read instructions via a QR code that walks the user through each step. Once the paste is prepared and applied, it begins to harden, forming a temporary brace to support healing.

This design bridges the gap between discovery and proper rehabilitation. For people who might feel powerless after stumbling upon a bird in distress, BirdAid offers a tangible way to help. The paste is also non-toxic and safe if ingested, which further reduces the risks involved. As shown in the design visuals, the process is clean, accessible, and fast, offering a humane alternative to makeshift splints or stressful transport to crowded wildlife centres.

BirdAid is also a nod to a larger problem: wildlife injuries in cities often go unseen or untreated. Even those who want to help often don’t have the means or know-how to do so safely. This kit gives them a real option—no special training, no waiting. Just a fast, safe, dissolvable solution that gives the bird a fighting chance until it can either recover on its own or reach professional care.

A hopeful step for wildlife in metropolitan landscapes

While BirdAid remains in the prototype phase, its potential is clear. It’s a rare example of thoughtful, scalable design that empowers people to take direct action. With more than 56% of the global population now living in urban areas, and increasing overlap between city infrastructure and natural ecosystems, innovations like this one could make a lasting difference in day-to-day animal welfare.

As the designers note on their project page, the next step is wider field-testing and potential partnerships with animal welfare organisations or wildlife response units. The fact that it’s made entirely from biodegradable, food-safe materials also makes it far more sustainable than traditional splinting tools, which can be invasive, stressful, and hard to apply.

The big takeaway is that design doesn’t always have to be high-tech or flashy to be effective. BirdAid is smart, empathetic, and grounded in real-world needs. It’s the kind of idea that could easily sit in someone’s backpack, first aid drawer, or bike basket, quietly waiting for the moment it’s needed most.

If rolled out properly, BirdAid could become a small but vital part of the way cities support the wildlife trying to coexist alongside us. And for those who’ve ever paused on the pavement, watching a wounded bird struggle to stand, it’s a welcome piece of hope.