The fire has burned through 11,199 acres and is only 5 percent contained.
More than 90,000 people have been told to evacuate areas south of Los Angeles, as fires burn more than 10,000 acres.
There are currently seven large active fires in Colorado, which have collectively burned at least 423,133 acres, as of Sunday.
There are five other large active fires in Colorado, which have collectively burned 232,358 acres, according to the National Interagency Fire Center.
The blaze was at around 19,000 acres Wednesday morning and expanded to over 30,000 acres by early evening, according to fire officials.
Keepers hope Captain Cal, who was severely burned in the Zogg fire, will form a "great bond" with fellow cubs Pink Nose and Black Nose.
Fellows at the Stanford Institute for Economic Policy Research (SIEPR) estimate it will cost up to $1,000 per acre to clear damaged land.
The California Department of Forestry and Fire Protection has warned that "humidity recovery remains slow, continuing the increased fire danger."
Fire suppression efforts in the West Zone of the August Complex Fire were hampered by "dangerously low humidity levels" on Monday, the California Department of Forestry and Fire Protection confirmed.
The four crew members on duty in Butte County were treated for injuries to their legs as well as heat exhaustion.
More than 16,500 firefighters are battling 23 major wildfires.
The 4 million acres burned is more than double the previous record, with two months left in the fire season.
Fire activity in the Glass Fire area is projected to pick up following the Red Flag Warning in effect across the region.
The air quality is expected to remain "unhealthy" through Friday in the Northern Zone and Eastern Zone of the Bay Area.
A Red Flag Warning remains in place for parts of southern California due to critical fire weather.
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A state of emergency has been declared across Napa, Sonoma and Shasta counties due to the Glass and Zogg fires.
Space X's Starlink project aims to beam high-speed internet to Earth, with "near global coverage" potentially possible next year
Evacuation orders are in effect across parts of Napa County following the Glass Fire, which is zero percent contained.
Since the beginning of the year, more than 8,100 wildfires have been reported in California, which have burned a total of more than 3.7 million acres.
There are around 64 wineries in the areas under evacuation orders and warnings in the Napa Valley region.
The Glass Fire is burning with "a dangerous rate of spread," the California Department of Forestry and Fire Protection confirmed.
The August Complex Fire is approaching California's Trinity Pines area, where there are reportedly up to 40 legal cannabis farms.
Many farmers hadn't harvested crops before the fires erupted in wine country this year.
Over 18,200 firefighters continue to combat wildfires across the state.
Around 8,000 wildfires have burned over 3.6 million acres of California this year.
Many experts are pointing to climate change as the biggest driving force behind this sharp increase in the number of wildfires.
Over 7,900 California wildifres have burned more than 3.6 million acres of the state this year to date.
The Bobcat Fire in Los Angeles County has burned more than 103,000 acres of the state, as of Sunday.
Local officials said federal law enforcement, not police, fired the gas at protesters gathered outside a building of U.S. Immigration and Customs Enforcement.