1) A parliament of owls

Series
Colorado's wildlife company volume 1992 winter
Publisher
Colorado Division of Wildlife, Nongame and Endangered Wildlife Program
Pub. Date
1992.
Language
English
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Colorado's Wildlife Company
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2) The little owls

Series
Colorado's wildlife company volume 1999 winter
Publisher
Colorado Division of Wildlife
Pub. Date
1999.
Language
English
Appears on list
Colorado's Wildlife Company
eBook
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3) Colorado State Parks raptor monitoring handbook

Author
Colorado. Division of Parks and Outdoor Recreation
Publisher
Colorado State Parks
Pub. Date
2005.
Language
English
eBook
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4) Recommended survey protocol and actions to protect nesting burrowing owls

Publisher
Colorado Division of Wildlife
Language
English
eBook
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