In the early morning and on cool days, butterflies often can be seen with their wings open soaking up the heat. They must increase their body temperature before they are capable of strong flight. A light-colored rock or garden ornament placed to catch the early morning sun, can be used as a site for butterflies to perch on while waiting for their body temperatures to rise. In addition to serving as basking sites, rocks, old logs, and small brush piles can benefit other wildlife. Rocks and logs placed in shade can provide relief and shelter from the mid-day heat of summer.
Many species also seek winter shelter in rock piles, old logs, and brush piles.
The common Ladybug Beetle is one insect that will congregate by the thousands under rocks, bark, and even leaves to overwinter in northern climates. When planning your backyard habitat, be sure to include basking sites. Rocks and logs not only provide needed habitat for wildlife, but can be used to create interest and diversity of texture in the garden. For more information on Backyard Conservation practices, contact your local conservation district or the Natural Resources Conservation Service. The National Association of Conservation Districts has produced A Backyard Conservation Starter Kit in a box.