Bird groups - PowerPoint PPT Presentation

Geologic Time

Geologic Time. A brief history of the 4.6 Billion history of Planet Earth. The Geologic Time Scale. The standard method used to divide the Earth’s long (4.6 Billion year) natural history into manageable parts. Boundaries indicate visible changes on Earth or

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492 views • 27 slides

Birds at Bridgeport

Birds at Bridgeport. South Yuba River State Park. Birds at Bridgeport. Introductory sample, selected by Ed Pandolfino Pictures and sound extracted from Internet by Herb Lindberg. Resident year around

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320 views • 20 slides

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