Every parent wants to ensure their offspring are safe, but certain birds have taken this desire for safety to a whole new level. Read on to see how some birds have taken to literally living with predators as a way to protect their young.
This little goldcrest may not be big enough to cover all her eggs, but thanks to a unique technique she can still keep them warm. The secret to her success can only be revealed through thermal cameras and has been caught on film for the very first time.
Male swiftlets use their own building material, gluey saliva, to build their nests. Constructed layer by layer along the cave walls, it can be weeks of painstaking work.