Squirrel Nest

Often we don't see the species such as mammals while we're out in our yards or hiking. So how can we know there? We often "see" other species by what they have built or left behond. In this case, rather than discovering prints in wet mud, we can look iup and see a squirrel's nest, and know that they built this large leafy nest, which can contain lots of other matierials such as fabric and stuffing from porch pillows. So when you are walking outdoors, try to notice what other creatures have left behind and see if you can deter mine who it was, when it was and why they were here.