In Their Footsteps - Virtual Introduction to Backyard Owls - Lewis and Clark National Historical Park (U.S. National Park Service)
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Spotted owls vs. barred owls: Clark ethicist helps guide debate on protecting species - Clark Now | Clark University
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Working bibliography of owls of the world: with summaries of current taxonomy and distributional status | Richard J. Clark
![Superb northern saw-whet owl preparing to leave its nesting cavity in a tree in Washington, USA. (Image - David Clark). : r/Superbowl Superb northern saw-whet owl preparing to leave its nesting cavity in a tree in Washington, USA. (Image - David Clark). : r/Superbowl](https://preview.redd.it/4n41ucesfkx71.jpg?width=640&crop=smart&auto=webp&s=91ef36497153397bc0ab75d20a0b5a59d619986a)
Superb northern saw-whet owl preparing to leave its nesting cavity in a tree in Washington, USA. (Image - David Clark). : r/Superbowl
![Clark is an Eastern Screech Owl. At this small size, many people think he's just a baby but he is fully grown! | Wild animal park, Eastern screech owl, Screech owl Clark is an Eastern Screech Owl. At this small size, many people think he's just a baby but he is fully grown! | Wild animal park, Eastern screech owl, Screech owl](https://i.pinimg.com/736x/3a/4a/0d/3a4a0dfeac0e8b3a36550e904ef41f1c--clarks-he-is.jpg)
Clark is an Eastern Screech Owl. At this small size, many people think he's just a baby but he is fully grown! | Wild animal park, Eastern screech owl, Screech owl
![Photo of the Day: Sunny Eastern Screech Owl • The National Wildlife Federation Blog : The National Wildlife Federation Blog Photo of the Day: Sunny Eastern Screech Owl • The National Wildlife Federation Blog : The National Wildlife Federation Blog](http://farm9.staticflickr.com/8064/8213153704_47e4f2542f_z.jpg)