(Photo by Tina Arteaga)
Here are some more interesting facts about dead trees, also called snags, from the Northwestern Illinois Forestry Association:
•There are at least 38 species of birds that either excavate nest holes or use existing holes in dead or dying trees. In addition, 29 species of mammals also use tree cavities.
• Birds of prey frequently use snags as hunting perches.
• Many songbirds that occupy habitat on the forest edge use snags as singing perches.
• Woodpeckers use undecayed portions of snags as drumming sites to signal their territory.
• Primary cavity nesters, such as woodpeckers, typically excavate their own nest sites. Secondary cavity nesters, such as screech owls, use natural cavities and abandoned woodpecker excavations.
(Lead image by Chad Merda)
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