Objects Created by Animals

Brief

This contest is for your photos of objects that have been actively created by animals, whether purposefully using or manipulating material from their environment or using substances produced by their bodies. Examples include nests, hills, balls, burrows, funnels or webs. The objects must have been actively created by animals so please do not enter photos of things like shells, nor objects created out of animal bodies only, such as an ant bridge. It would be great if you could show the animals creating the objects, but this is not essential. Photos can be in colour or black and white. I am looking forward to seeing your photos.