Experts are desperate to analyse rusty patched bumblebee nests for information that might help save them. But they are extremely hard to find – unless you’re a trained conservation canine Experts are desperate to analyse rusty patched bumblebee nests for information that might help save them. But they are extremely hard to find – unless you’re a trained conservation canine Main image: Two rusty patched bumblebee gynes in the nest discovered by Dave Giordano in August 2023. Below: Jay Watson, a