Birds such as woodpeckers and chickadees don't hibernate but remain throughout the winter. They rely on insects in the larva, pupa, and egg stages as sources of food during the winter. Some insects, like colourful butterflies and shiny beetles, are easy to spot. Other insects, like beetles, spiders and moths, are nearly impossible to find because they match the colour of the tree bark or leaves in their habitat. This kind of adaptation, in which an insect looks the same as its background habitat, is known as camouflage.
Insects feed on many parts of plants and trees.
They get nectar, fruit juices and sap from some plants. They feed on green leaves, dried leaves and decaying plants. They eat branches, roots, wood, flowers, pollen and seeds. Some insects have mouth parts that can suck the plant juices and some have mouth parts for chewing. Insects like the spruce budworm eat the needles of conifer trees.