David Attenborough explores the extraordinary variety of ways in which birds from all over the world construct their nests and protect their eggs from predators. Because birds need to be light in order to fly, each egg must be laid as soon as it is produced and then kept both warm and protected. So the vast majority of birds make nests of some kind. Australian warblers use their beaks like a sewing machine to stitch leaves together, and apostle birds use them to trowel mud on their nests.moreless
Please read the following before uploading
Do not upload anything which you do not own or are fully licensed to upload. The images should not contain any sexually explicit content, race hatred material or other offensive symbols or images. Remember: Abuse of the TV.com image system may result in you being banned from uploading images or from the entire site – so, play nice and respect the rules!