It is because the seagull is an invasive spices to the world
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The California state bird is the California Quail.
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The California state bird is the California Quail.
The California state bird is the Valley Quail.
California's state bird is the California Valley Quail.
California's State Bird is the California quail.
The state bird of California is the California quail.
California Valley Quale is the California state bird.
The California Valley Quail was adopted as state bird of California in the year 1931.
It is Utah's state bird.
The California gull does not belong to any state currently as a state bird. Utah's state bird is the Common American Gull; this name is often confused with the California Gull.