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  • A young opossum makes his way on his own, living in a Bay Area backyard.

  • Keep an eye out for injured and orphaned opossums this time of year.

  • An opossum carries a load of materials for its den.

  • A baby opossum is tube fed at the Wildlife Center...

    Jim Gensheimer/Bay Area News Group archives

    A baby opossum is tube fed at the Wildlife Center of Silicon Valley in San Jose.

  • Baby opossums wait to be tube fed at the Wildlife...

    Jim Gensheimer/Bay Area News Group archives

    Baby opossums wait to be tube fed at the Wildlife Center of Silicon Valley in San Jose.

  • Opossums cling to their cage as they are transferred to...

    Jim Gensheimer/Bay Area News Group archives

    Opossums cling to their cage as they are transferred to a larger enclosure at the Wildlife Center of Silicon Valley.

  • Bedraggled opossum recovers from a near drowning in a backyard pool.

  • Opossum moved into this empty birdhouse.

  • 6-week old opossums use a tissue box as a home...

    6-week old opossums use a tissue box as a home while under the care of a Lindsay Wildlife Experience volunteer.

  • An opossum makes good use of a backyard fence.

  • White opossum creates a stir.

    Courtesy of Shelley Erkel

    White opossum creates a stir.

  • An opossum visits a backyard.

    Courtesy of Kathy Hall

    An opossum visits a backyard.

  • Nesting opossums.

    Courtesy of Anne Dudman

    Nesting opossums.

  • An opossum shows off its climbing skills.

    Courtesy of Jacques Guertin

    An opossum shows off its climbing skills.

  • A mother opossum and her babies stroll along a fence in a South San Jose backyard.

  • Wildlife technicians attend to an injured opossum at Peninsula Humane...

    John Green/Bay Area News Group archives

    Wildlife technicians attend to an injured opossum at Peninsula Humane Society in Burlingame.

  • An opossum meets some visitors to Lindsay Wildlife Experience.

    Doug Duran/Bay Area News Group archives

    An opossum meets some visitors to Lindsay Wildlife Experience.

  • Opossums are pretty clever creatures.

    Opossums are pretty clever creatures.

  • A mother opossum and her family of 7 babies, "moving...

    A mother opossum and her family of 7 babies, "moving on!"

  • Alicia Goode a taxidermist adds whiskers to a opossum headed...

    Alicia Goode a taxidermist adds whiskers to a opossum headed for a display in the Gallery of California Natural Sciences wing at the Oakland Museum of California in Oakland, on Wednesday, May 15, 2013. The 25,000 square foot gallery currently being refurbished focuses on seven areas within the state to display the wide ranges of climate, geology, habitats, ecosystems, and wildlife. (Anda Chu/Bay Area News Group)

  • An opossum explores the blue plumbago in a backyard.

    Courtesy of Rochelle Hays

    An opossum explores the blue plumbago in a backyard.

  • To orphaned opossums hang out at Hayward's Sulphur Creek Nature...

    Bay Area News Group Archives

    To orphaned opossums hang out at Hayward's Sulphur Creek Nature Center.

  • An opossum hides under a seat on the subway in...

    AP Photo/New York Times

    An opossum hides under a seat on the subway in New York.

  • An opossum named Heidi was a popular attraction at a...

    AP Photo/Sebastian Willnow

    An opossum named Heidi was a popular attraction at a German zoo.

  • An opossum plays hide-and-seek.

    AP Photo/Damian Dovarganes

    An opossum plays hide-and-seek.

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Joan Morris, Features/Animal Life columnist  for the Bay Area News Group is photographed for a Wordpress profile in Walnut Creek, Calif., on Thursday, July 28, 2016. (Anda Chu/Bay Area News Group)
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DEAR JOAN: We have seen an adult opossum in our backyard, but it now seems like there’s a baby left behind in our yard. This creature comes out even during the day and moves around slowly.

Is the presence of this somehow a cause for concern? Is there a humane way to relocate it?

Anantha S., Bay Area

DEAR ARANTHA: If you weren’t concerned about an adult opossum in your backyard, then you shouldn’t be concerned about the youngster. Of all the wild critters you could have in your yard, the opossum is about the least threatening and worrisome.

The opossum might look too small and young to be on its own, but that’s the way it is with opossums, the only native marsupial north of Mexico. After only 13 days in the womb, the tiny babies climb up their mother’s body from the birth canal to her pouch, where they attach to a nipple and stay there for about 50 days.

After that, they are old enough to leave the pouch and climb onto their mother’s back where they spend much of their time being ferried about. As they get older, they aren’t able to squeeze back inside the pouch, so one day, they drop off their mom’s back and start their own opossum lives. They are about 100 days old at this point.

Opossums have some attributes that many people don’t know about. They eat thousands of ticks, thereby helping to slow the spread of lyme disease, and because of a healthy immune system and low body temperature, they rarely contract rabies. They also have a certain amount of immunity to rattlesnake venom, which allows them to kill and eat the snakes.

If you don’t have chickens — opossums are fond of both chicks and eggs — your opossum shouldn’t do too much damage.

There is no way to humanely or legally relocate the opossum. State law allows you to trap an opossum but then you must either release it on your property or kill it.

You can trap it and release it outside your fenced backyard, or block its den (usually under buildings or decks) and remove food and water sources. They are good climbers, so this one will probably go away on its own.

DEAR JOAN: I’ve been getting an acorn woodpecker at the peanut feeder off and on all morning. I haven’t had one of these for some time. He’s causing the scrub-jay to be concerned.

Liede-Marie, Bay Area

DEAR LIEDE-MARIE: I don’t blame the jay. Those woodpeckers can pack a wallop that even a bully bird like a scrub-jay can appreciate.

Attracting the hummers

Late last year, I ran a letter from a reader who finally had success in attracting hummingbirds to her yard after she put up a Canadian flag. Those bright red bars and maple leaf seemed to call the birds to her like nothing ever had before.

Another reader, Joyce Alameda, wasn’t keen on putting up a flag, but when she saw some red, artificial gerbera daisies at her local Dollar Tree store, she decided to give them a try, and now her hummingbird feeders are being mobbed by hummers.

If you’re having trouble getting hummingbirds to give your feeders some attention, try putting some vivid red in your yard, or better yet, growing plants that have a lot of red blooms or foliage.