 With warmer temperatures and longer days this means a change in activity for many of Wyoming's wildlife species. For resident and migratory birds this means it's time to build a nest. Bird nests are constructed so adult birds can incubate their eggs. Nests vary in architecture and construction depending on the species of bird building them. Nests can be built on the ground, cliff faces, eaves of buildings on tall vegetation like trees or shrubs or in cavities of dead trees. Construction materials can include mud, sticks, vegetation, and sometimes discarded human-made materials. Nests are usually built in concealed locations to avoid predators. They are located along the edges of different vegetation habitats with a water source nearby. Depending on the bird species nests are reused over consecutive nesting years and are refurbished with each nesting season. Many Wyomingites enjoy bird watching. Building man-made houses, ground structures, and raised nests are a great way to enhance viewing and nesting habitat for Wyoming birds. So the next time you're out for a spring or summer walk keep an eye out for the different types of nests built by Wyoming's bird species. From the University of Wyoming Extension I'm Brian Sebade exploring the nature of Wyoming.