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| Photo: © Dave Appleton, May
2005 |
This secretive bird, the largest quail
north of Mexico, inhabits dense cover in the wooded foothills
and thick shrub habitats in the mountain ranges of western
North America – primarily the Sierra Nevada, Cascade,
and Coast Ranges, but with disjunct populations in the Intermountain
West and Baja California. Its elevational range is 700 to
over 3,000 meters. Because of numerous attempted introductions
many years ago, it may be that current birds north of the
Columbia River are not native.
Five subspecies have been defined, but
changes in traits seem clinal and many or all of these taxonomic
distinctions may be artificial. It is notable among quail
for its extensive elevational migrations and its almost exclusive
reliance on plant material for food. It is poorly monitored,
but appears to have significantly declined and suffered range
reductions in the eastern, Intermountain West, portion of
its range, but seems to be doing reasonably well in the western
mountains where the bulk of these birds live.
Urbanization in the mountains of Southern
California has destroyed habitat for the quail there, and
increased development in the Sierra Nevada has decreased winter
habitat for the species. Livestock watering tanks in arid
regions are a benefit to the birds, but heavy livestock grazing
can reduce the amount of food available to the birds. Translocating
birds to areas within their historic range has been attempted
in some states, but the results of such actions is not yet
known. Hunting is banned in areas where the bird is in decline.
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