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bull thistle (Cirisium vulgare)

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Northwest San Felipe Lake

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San Jacinto WA: Bridge Street Pond

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Acknowledgements

Primary support for the development of this website was provided by the U.S. Fish & Wildlife Service, with additional funding provided by the National Biological Information Infrastructure, a federal agency that was discontinued in January, 2012.

Collaborators on this website include the U.S. Fish & Wildlife Service, Audubon California, the California Department of Fish & Wildlife, Sustainable Conservation, and Point Blue (formerly PRBO) Conservation Science.

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This website and the data held within the Tricolored Blackbird Portal database are © (2007-2025) The Regents of the University of California, Davis. It is licensed under a Creative Commons attribution-non-commercial-no derivatives 4.0 license. All other rights reserved. To make use of the Portal data in any other way including for commercial purposes, please contact us.

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Last update: June 23, 2025

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