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The California scrub jay is a medium-sized bird, approximately 27–31 cm (11–12 in) in length (including its tail), with a 39 cm (15 in) wingspan, and about 80 g (2.8 oz) in weight. In general, this species has a blue head, wings, and tail; a gray-brown back; grayish underparts; and white eyebrows.
This bird was named by Audubon for John Graham Bell, who accompanied him on his trip up the Missouri River in the 1840s. The least Bell's vireo (Vireo bellii pusillus) is an endangered subspecies in Southern California. Consideration of Bell's vireo has been a factor in several land development projects, to protect least Bell's vireo habitat ...
Some California native plants are in rapid decline in their native habitat due to urban sprawl, agriculture, overgrazing, recreational impacts, pollution, and invasive non-native species (invasive exotics) colonization pressures (animals and other kingdoms of life, as well as plants). [17] California also has 1,023 species of non-native plants ...
Chaparral comprises 9% of California's wildland vegetation and contains 20% of its plant species. [ citation needed ] Conservation International and other conservation organizations consider chaparral to be a biodiversity hotspot [ 5 ] – a biological community with a large number of different species that is threatened by human activity.
Typical birds of the region include scrub jays, wrentits, and rufous-sided towhees. Predatory birds include great horned owls and red-tailed hawks. [5]: 374–377 The California gnatcatcher is a small bird, endemic to this coastal ecoregion, which has been protected as its habitat is now designated an Important Bird Area.
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Note: references for each plant species are within their own articles. Bibliography of the Sierra Nevada (U.S.) "A Natural History of California," Allan A. Schoenherr, University of California Press, 1992, ISBN 0-520-06922-6. "A California Flora and Supplement," Phillip Munz, 1968, University of California Press, ISBN 0-520-02405-2.
This fruit type is found only in certain plants belonging to the rose family. These pomes are highly prized as a food source by a great variety of birds and other critters, including moose, which ...