Top 5 Kids Apps: Best Games

1. Bugs and Bubbles

Ages 3-up Overall rating: 5 out of 5 stars Why we like it: Fun, fast and good for building emerging math skills, Bugs and Bubbles contains 18 leveled sorting, classification games set in Uncle Bob’s Bubble Factory. The goal is to collect stickers by harvesting bubbles, requiring kids to apply skills of counting, sorting and remembering patterns in an elegant fashion. Need to know: The better you do, the greater the challenge, and progress can be saved over time on different devices. Watch a video review of this app here. Ease of use: 10/10 Educational: 10/10 Entertaining: 10/10 $ 2.99

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[More from Mashable: 7 Bad Moves That Hurt Facebook in 2012]

Chris Crowell is a veteran kindergarten teacher and contributing editor to Children’s Technology Review, a web-based archive of articles and reviews on apps, technology toys and video games. Download a free issue of CTR here.

While you’re at the grownup table this holiday season, the kids could be eating their vegetables and sitting quietly — what’s more likely is they’ll be playing on their smart devices.

[More from Mashable: 40 Digital Media Resources You May Have Missed]

So we’ve rounded up the best 5 games that were included in this year’s Top 5 Kids Apps. All these games are not only a lot of fun, they’re also educational for your kids. The top game, Bugs and Bubbles, got 5 stars out of 5 for its perfect mix of entertainment and math teaching. There’s also room for pure fun with games like Build and Play and Rush Hour.

SEE ALSO: Mobile Apps Under Scrutiny: Is Your Kid’s Privacy at Risk?

Our friends at Children’s Technology Review shared with us these 5 top apps from their comprehensive monthly database of kid-tested reviews. The site covers everything from math and counting to reading and phonics.

Check back next week for more Top Kids Apps from Children’s Technology Review

Photo via Christopher Furlong/Getty Images

This story originally published on Mashable here.

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Kanye West, Kim Kardashian expecting 1st child

ATLANTIC CITY, N.J. (AP) — A kid for Kimye: Kanye West and Kim Kardashian are expecting their first child.

The rapper announced at a concert Sunday night that his girlfriend is pregnant. He told the crowd of more than 5,000 at Revel Resort's Ovation Hall in song form: "Now you having my baby."

The crowd roared. And so did people on the Internet.

The news instantly went viral on Twitter and Facebook, with thousands posting and commenting on the expecting couple.

Most of the Kardashian clan also tweeted about the news, including Kim's sisters and mother. Kourtney Kardashian wrote: "Another angel to welcome to our family. Overwhelmed with excitement!"

West, 35, also told concertgoers to congratulate his "baby mom" and that this was the "most amazing thing."

Representatives for West and Kardashian, 32, didn't immediately respond to emails about the pregnancy.

The rapper and reality TV star went public in March.

Kardashian married NBA player Kris Humphries in August 2011 and their divorce is not finalized.

West's Sunday night show was his third consecutive performance at Revel. He took the stage for nearly two hours, performing hits like "Good Life," ''Jesus Walks" and "Clique" in an all-white ensemble with two band mates.

___

AP Writer Bianca Roach contributed to this report.

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Chinese Firm Is Cleared to Buy American DNA Sequencing Company

Ramin Rahimian for The New York Times

DNA sequencing machines at Complete Genomics in California. The firm dismissed concerns about its acquisition.

The federal government has given national security clearance to the controversial purchase of an American DNA sequencing company by a Chinese firm.

The Chinese firm, BGI-Shenzhen, said in a statement this weekend that its acquisition of Complete Genomics, based in Mountain View, Calif., had been cleared by the federal Committee on Foreign Investment in the United States, which reviews the national security implications of foreign takeovers of American companies. The deal still requires antitrust clearance by the Federal Trade Commission.

Some scientists, politicians and industry executives had said the takeover represented a threat to American competitiveness in DNA sequencing, a technology that is becoming crucial for the development of drugs, diagnostics and improved crops.

The fact that the $117.6 million deal was controversial at all reflects a change in the genomics community.

A decade ago, the Human Genome Project, in which scientists from many nations helped unravel the genetic blueprint of mankind, was celebrated for its spirit of international cooperation. One of the participants in the project was BGI, which was then known as the Beijing Genomics Institute.

But with DNA sequencing now becoming a big business and linchpin of the biotechnology industry, international rivalries and nationalism are starting to move front and center in any acquisition.

Much of the alarm about the deal has been raised by Illumina, a San Diego company that is the market leader in sequencing machines. It has potentially the most to lose from the deal because BGI might buy fewer Illumina products and even become a competitor. Weeks after the BGI deal was announced, Illumina made its own belated bid for Complete Genomics, offering 15 cents a share more than BGI’s bid of $3.15. But Complete Genomics rebuffed Illumina, saying such a merger would never clear antitrust review.

Illumina also hired a Washington lobbyist, the Glover Park Group, to stir up opposition to the deal in Congress. Representative Frank R. Wolf, Republican of Virginia, was the only member of Congress known to have publicly expressed concern.

BGI and Complete Genomics point out that Illumina has long sold its sequencing machines — including a record-setting order of 128 high-end machines — to BGI without raising any security concerns. Sequencing machines have not been subject to export controls like aerospace equipment, lasers, sensors and other gear that can have clear military uses.

“Illumina has never previously considered its business with BGI as ‘sensitive’ in the least,” Ye Yin, the chief operating officer of BGI, said in a November letter to Complete Genomics that was made public in a regulatory filing. In the letter, Illumina was accused of “obvious hypocrisy.”

BGI and Complete said that Illumina was trying to derail the agreement and acquire Complete Genomics itself in order to “eliminate its closest competitor, Complete.”

BGI is already one of the most prolific DNA sequencers in the world, but it buys the sequencing machines it uses from others, mainly Illumina.

Illumina, joined by some American scientists, said it worried that if BGI gained access to Complete’s sequencing technology, the Chinese company might use low prices to undercut the American sequencing companies that now dominate the industry.

Some also said that with Complete Genomics providing an American base, BGI would have access to more DNA samples from Americans, helping it compile a huge database of genetic information that could be used to develop drugs and diagnostic tests. Some also worried about protection of the privacy of genetic information.

“What’s to stop them from mining genomic data of American samples to some unknown nefarious end?” Elaine R. Mardis, co-director of the genome sequencing center at Washington University in St. Louis, said in an e-mail.

Dr. Mardis could not specify what kind of nefarious end she imagined. But opponents of the deal cited a November article in The Atlantic saying that in the future, pathogens could be genetically engineered to attack particular individuals, including the president, based on their DNA sequences.

BGI and Complete Genomics dismissed such concerns as preposterous.

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Tribune Co. set to exit bankruptcy protection

Tribune Co. is expected to emerge from bankruptcy protection Monday with a new board of directors composed largely of entertainment-industry veterans.

Exiting bankruptcy would mark a milestone for Tribune, the parent of the Los Angeles Times and other newspaper and television properties.

Tribune sought Bankruptcy Court protection in December 2008 after a leveraged buyout by real estate magnate Sam Zell saddled the company with $12.9 billion in debt just as advertising revenue was collapsing. It is one of the longest bankruptcy cases in U.S. corporate history.

Tribune will emerge as a slimmed-down entity with a more stable financial base. But the media conglomerate will still be buffeted by the larger forces pounding the newspaper industry, specifically uncertainty over whether papers can generate sufficient revenue from digital operations.

"Tribune is far stronger than it was when we began the Chapter 11 process four years ago and, given the budget planning we've done, the company is well-positioned for success in 2013," Eddy Hartenstein, Tribune's chief executive, wrote in a note to employees Sunday night.

Tribune's new board of directors is expected to be made up of a who's who of Hollywood players. Most have no hands-on experience running newspapers and television stations, which are Tribune's biggest assets.

Five of the seven members have ties to the entertainment and media industries, including Hartenstein and Peter Liguori, a former News Corp. executive who is expected to succeed Hartenstein as Tribune CEO in the next few weeks.

Also expected to be named to the board are Peter Murphy, previously a longtime executive at Walt Disney Co.; Ross Levinsohn, former head of global media at Yahoo Inc.; and Craig A. Jacobson, a veteran entertainment attorney.

The board will be rounded out by Bruce Karsh, president of Oaktree Capital Management, the Los Angeles investment firm that owns about 23% of the new Tribune; and Kenneth Liang, an Oaktree managing director.

Tribune owns 23 local television stations, eight daily newspapers and Internet and other media properties.

Those holdings include KTLA-TV Channel 5, the Chicago Tribune, and national cable station WGN-TV. Tribune also holds slightly less than one-third of the Food Network cable channel and about a 25% stake in the CareerBuilder website.

Liguori is also a former Discovery Communications senior executive whose resume is in programming and marketing. He headed both the FX cable network and Fox Broadcasting at News Corp. At Discovery he served as chief operating officer of the cable programming giant.

Murphy spent almost two decades at Disney, rising to the position of chief strategist. He founded private investment firm Wentworth Capital Management. He has close ties to Angelo, Gordon & Co., an investment firm that will own roughly 9% of the new Tribune Co.

Levinsohn is a former head of global media at Yahoo. He also served briefly as its interim CEO before Google Inc.'s Marissa Mayer being tapped for that job. Levinsohn also is a former News Corp. executive who headed its interactive unit.

Jacobson, an attorney at Hansen, Jacobson, Teller, Hoberman, Newman, Warren, Richman, Rush & Kaller is one of Hollywood's more prominent deal-makers. His clients have included several high-profile executives and performers such as Ryan Seacrest.

Tribune remained profitable throughout the bankruptcy, building cash reserves of more than $2.5 billion as of Nov. 18, according to a U.S. Bankruptcy Court filing this month. Creditors are expected to immediately take nearly $3 billion in cash out of the new company, some of it coming from a new $1.1-billion loan that was approved as part of the bankruptcy.

The value of Tribune's newspaper properties has sunk to $623 million, a fraction of their value a few years earlier, according to an estimate filed in Bankruptcy Court in April.

A key question still to be answered is what Tribune will do with its newspapers. Some analysts believe the company will seek to sell the slower-growing newspapers to focus on TV holdings.

As for the Los Angeles Times, Rupert Murdoch's News Corp. has expressed interest, according to people familiar with the matter.

Aaron Kushner, owner of the Orange County Register, and Doug Manchester, the San Diego real estate developer who last year bought the local Union Tribune newspaper, also have shown interest.

Austin Beutner, the former venture capitalist and former deputy mayor of Los Angeles, told The Times in October that he has reached out to civic-minded investors who would consider acquiring the paper.

walter.hamilton@latimes.com

joe.flint@latimes.com

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Officials warn holiday revelers against firing weapons

By Richard Winton, Los Angeles Times

December 29, 2012, 8:59 p.m.

Los Angeles officials are warning that anyone discharging a firearm into the air to celebrate the new year not only risks killing someone but could also face a lengthy prison sentence.

"Firing into the air weapons in celebration puts innocent lives at risk," Mayor Antonio Villaraigosa said last week. "Nothing ruins the holiday season like an errant bullet coming down and killing an innocent."

Villaraigosa said the misuse of firearms is on everyone's mind in the wake of the Newtown, Conn., school shooting that left six adults and 20 children dead. The mayor vowed that authorities will pursue criminal charges for anyone caught in possession of a weapon in public.

For more than a decade, city and county leaders have tried to quell celebratory gunfire.

Los Angeles Police Chief Charlie Beck said a bullet discharged into the air falls at a rate of 300 to 700 mph, depending on the weapon — "easily enough to crack the human skull."

"Please celebrate New Year's with your family, not in [Sheriff] Lee Baca's jail or my jail," Beck said, pledging to capture anyone firing a weapon. "Firing a gun in the air isn't only dangerous and a crime but socially unacceptable."

L.A. County Dist. Atty. Jackie Lacey said that anyone caught firing a weapon — even if they don't hit someone — will face a felony charge and a fine of up to $10,000 and a possible three-year sentence. A conviction would be considered a strike offense and the suspect would lose the right to own a firearm.

Supervisor Mark Ridley-Thomas said that in some county areas, special equipment has been deployed to spot shots within seconds and track their locations.

"The madness of gun violence has to stop," he said. "This is a matter of physics. What goes up must come down."

richard.winton@latimes.com

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Michigan Passes Law to Protect Social Media Accounts

Michigan passed a bill on Friday that prohibits employers and schools from asking employees and students for login information to their personal social media accounts.

House Bill 5523, signed by Governor Rick Snyder and introduced by state Rep. Aric Nesbitt, “prohibit[s] employers and educational institutions from requiring certain individuals to grant access to, allow observation of, or disclose information that allows access to or observation of personal internet accounts.”

[More from Mashable: An Epic Walk From Beijing to London Fueled by Social Media]

This means an employer or institution cannot require that you provide them with your username or passwords for sites like Facebook and Twitter. The bill is known as the “internet privacy protection act.”

“Potential employees and students should be judged on their skills and abilities, not private online activity,” Snyder said in a press release.

[More from Mashable: Facebook in 2013: More Growing Pains Ahead]

Michigan isn’t alone in adapting laws to the changing Internet social sphere.

Earlier this year, Delaware banned public and private schools from requiring students’ social media account information. The bill passed through the House in a unanimous vote. Months earlier, Maryland introduced a similar bill that would particularly benefit student athletes.

In September, California passed a law that barred companies from asking its workers to surrender their social media account passwords.

Will bills and acts similar to these become more commonplace in our local and national legislature? Let us know your thoughts in the comments.

1. Alcohol Overload

You’re out of college, it’s not cool anymore – just ask your boss.

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McCartney, 'God particle' scientist get honors

LONDON (AP) — Stella McCartney, who designed the uniforms worn by Britain's record-smashing Olympic team, and Scottish physicist Peter Higgs, who gave his name to the so-called "God particle," are among the hundreds being honored by Queen Elizabeth II this New Year.

The list is particularly heavy with Britain's Olympic heroes, but it also includes "Star Wars" actor Ewan McGregor, eccentric English singer Kate Bush, Roald Dahl illustrator Quentin Blake, and Jamie Lowther-Pinkerton, the royal aide who helped organize the watched-around-the-world wedding of Prince William to Kate Middleton.

McCartney was honored with the title of Officer of the Order of the British Empire, or OBE, in part for her work creating the skintight, red-white-and-blue uniforms worn by British athletes as they grabbed 65 medals during the 2012 games hosted by London. McCartney is the designer daughter of ex-Beatle Paul McCartney and his first wife Linda, and she has moved to make the family name almost as synonymous with fashion as it is with music, setting up a successful business and a critically-acclaimed label.

Higgs' achievements, which made him a Companion of Honor, touch on the nature and the origins of the universe. The 83-year-old researcher's work in theoretical physics sought to explain what gives things weight. He said it was while walking through the Scottish mountains that he hit upon the concept of what would later become known as the Higgs boson, an elusive subatomic particle that gives objects mass and combines with gravity to give them weight.

For decades, the existence of such a particle remained just a theory, but earlier this year scientists working at the European Organization for Nuclear Research, or CERN, said they'd found compelling evidence that the Higgs boson was out there. Or in there. Or whatever.

All of Britain's gold medalists from this year's games were on the list, with cyclist Bradley Wiggins and sailor Ben Ainslie honored with knighthoods.

Sebastian Coe, who masterminded the games as chairman of the London organizing committee, was made a Companion of Honor — a prestigious title also awarded to Higgs. But Ken Livingstone, London's former mayor, said Saturday he turned down a Commander of the Order of the British Empire, or CBE, recognizing his services to the Olympics because he doesn't believe politicians should get the queen's honors.

Honors lists typically include a sprinkling of star power, and this year was no different. Ewan McGregor, who came to public attention through his role as the heroin-addled anti-hero of British drug drama "Trainspotting," was awarded an OBE. The 41-year-old actor is also known for his turn as a young Obi-Wan Kenobi in the "Star Wars" prequels.

"Babooshka" singer Kate Bush said she was delighted to be made a CBE for a musical career which has resulted in a string of quirky hits including "Wuthering Heights," ''Cloudbusting," and "Man With The Child In His Eyes."

Other art world honorees included artist Tracey Emin and Quentin Blake, whose spiky, exuberant illustrations are best known through the work of his collaborator Roald Dahl.

Politicians, policemen, and spies got honors too. Scotland Yard chief Bernard Hogan-Howe was awarded a knighthood; former British foreign minister Margaret Beckett was made a Dame Commander of the Order of the British Empire. Former Prime Minister Tony Blair's wife Cherie was made a CBE for her charity work. MI5 chief Jonathan Evans was made a Knight Commander of the Order of Bath.

Also honored was the man credited with helping pull off the wedding of the decade: Jamie Lowther-Pinkerton, principal private secretary to the Duke and Duchess of Cambridge (as Prince William and his wife are formally known) was made a Lieutenant of the Royal Victorian Order.

Britain's honors are bestowed twice a year by the monarch, at New Year's and on her official birthday in June. Although the queen does pick out some lesser honors herself, the vast majority of recipients are selected by government committees from nominations made by officials and members of the public.

In descending order, the honors are knighthoods, CBE, OBE, and MBE — Member of the Order of the British Empire. Knights are addressed as "sir" or "dame." Recipients of the other honors, such as the Order of the Companions of Honor given to Higgs and Coe or the Royal Victorian Order personally picked out by the queen, receive no title but can put the letters after their names.

The New Year's honors carried the usual batch of courtiers — even the royal household's switchboard operator got a medal — as well as senior civil servants, soldiers, charity executives, successful entrepreneurs, established academics, volunteers, and community workers. Some of the more eclectic honors included the OBE handed to card game columnist Andrew Michael Robson "for services to the game of bridge," and the OBE given to river conservationist Andrew Douglas-Home "for services to fishing."

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Elwood V. Jensen, Pioneer in Breast Cancer Treatment, Dies at 92

Tony Jones/Cincinnati Enquirer, via Associated Press

Elwood V. Jensen in 2004.

Elwood V. Jensen, a medical researcher whose studies of steroid hormones led to new treatments for breast cancer that have been credited with saving or extending hundreds of thousands of lives, died on Dec. 16 in Cincinnati. He was 92.

The cause was complications of pneumonia, his son, Thomas Jensen, said.

In 2004 Dr. Jensen received the Albert Lasker Basic Medical Research Award, one of the most respected science prizes in the world.

When Dr. Jensen started his research at the University of Chicago in the 1950s, steroid hormones, which alter the functioning of cells, were thought to interact with cells through a series of chemical reactions involving enzymes.

However, Dr. Jensen used radioactive tracers to show that steroid hormones actually affect cells by binding to a specific receptor protein inside them. He first focused on the steroid hormone estrogen.

By 1968, Dr. Jensen had developed a test for the presence of estrogen receptors in breast cancer cells. He later concluded that such receptors were present in about a third of those cells.

Breast cancers that are estrogen positive, meaning they have receptors for the hormone, can be treated with medications like Tamoxifen or with other methods of inhibiting estrogen in a patient’s system, like removal of the ovaries. Women with receptor-rich breast cancers often go into remission when estrogen is blocked or removed.

By the mid-1980s, a test developed by Dr. Jensen and a colleague at the University of Chicago, Dr. Geoffrey Greene, could be used to determine the extent of estrogen receptors in breast and other cancers. That test became a standard part of care for breast cancer patients.

Scientists like Dr. Pierre Chambon and Dr. Ronald M. Evans, who shared the 2004 Lasker prize with Dr. Jensen, went on to show that many types of receptors exist. The receptors are crucial components of the cell’s control system and transmit signals in an array of vital functions, from the development of organs in the womb to the control of fat cells and the regulation of cholesterol.

Dr. Jensen’s work also led to the development of drugs that can enhance or inhibit the effects of hormones. Such drugs are used to treat prostate and other cancers.

Elwood Vernon Jensen was born in Fargo, N.D., on Jan. 13, 1920, to Eli and Vera Morris Jensen. He majored in chemistry at what was then Wittenberg College in Springfield, Ohio, and had begun graduate training in organic chemistry at the University of Chicago when World War II began.

Dr. Jensen wanted to join the Army Air Forces, but his poor vision kept him from becoming a pilot. During the war he synthesized poison gases at the University of Chicago, exposure to which twice put him in the hospital. His work on toxic chemicals, he said, inspired him to pursue biology and medicine.

Dr. Jensen studied steroid hormone chemistry at the Swiss Federal Institute of Technology on a Guggenheim Fellowship after the war. While there, he climbed the Matterhorn, one of the highest peaks in the Alps, even though he had no mountaineering experience. He often equated his successful research to the novel approach taken by Edward Whymper, the first mountaineer to reach the Matterhorn’s summit. Mr. Whymper went against conventional wisdom and scaled the mountain’s Swiss face, after twice failing to reach the summit on the Italian side.

Dr. Jensen joined the University of Chicago as an assistant professor of surgery in 1947, working closely with the Nobel laureate Charles Huggins. He became an original member of the research team at the Ben May Laboratory for Cancer Research (now the Ben May Department for Cancer Research) in 1951, and became the director after Dr. Huggins stepped down.

He came to work at the University of Cincinnati in 2002, and continued to do research there until last year.

His first wife, the former Mary Collette, died in 1982. In addition to his son, Dr. Jensen is survived by his second wife, the former Hiltrud Herborg; a daughter, Karen C. Jensen; a sister, Margaret Brennan; two grandchildren; and three great-grandchildren.

Dr. Jensen’s wife was found to have breast cancer in 2005. She had the tumor removed, he said in an interview, but tested positive for the estrogen receptor and was successfully treated with a medication that prevents estrogen synthesis.

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Home of the Week: the Venice landmark Lantern House

The Lantern House, used as a single-family compound but legally a trio of cottages, has become a Venice landmark over the years. The funky vibed, colorful dwelling is being offered fully furnished, including the larger-than-life movie props, artwork and fountains.

Location: 745 Milwood Ave., Venice 90291

Asking price: $5.4 million

Year built: 1923

Last sold: 1988, for $232,000

Cottage sizes: Unit 1: one bedroom, one bathroom; Unit 2: one bedroom, one bathroom; Unit 3: one bedroom, one half-bath

Lot size: 5,399 square feet

Features: Den/office, dining room, living room, eat-in kitchen, vaulted ceilings, skylights, French doors, five fireplaces, lantern-filled trees, extensive decking, outdoor dining room, lighted deck stair risers, decorative wrought-iron gates, outdoor bathtub

About the area: In the third quarter, 59 single-family homes sold in the 90291 ZIP Code at a median price of $1 million, according to DataQuick. That was a 2.8% increase from the third quarter last year.

Agent: Richard Stanley, Coldwell Banker, (213) 300-4567

—Lauren Beale

To submit a candidate for Home of the Week, send high-resolution color photos on a CD, written permission from the photographer to publish the images and a description of the house to Lauren Beale, Business, Los Angeles Times, 202 W. 1st St., Los Angeles, CA 90012. Send questions to homeoftheweek@latimes.com.

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Army Corps of Engineers clear-cuts lush habitat in Valley

An area that just a week ago was lush habitat on the Sepulveda Basin's wild side, home to one of the most diverse bird populations in Southern California, has been reduced to dirt and broken limbs — by the U.S. Army Corps of Engineers.

Audubon Society members stumbled upon the barren landscape last weekend during their annual Christmas bird count. Now, they are calling for an investigation into the loss of about 43 acres of cottonwood and willow groves, undergrowth and marshes that had maintained a rich inventory of mammals, reptiles and 250 species of birds.

Much of the area's vegetation had been planted in the 1980s, part of an Army Corps project that turned that portion of the Los Angeles River flood plain into a designated wildlife preserve.

Tramping through the mud Friday, botanist Ellen Zunino — who was among hundreds of volunteers who planted willows, coyote brush, mule fat and elderberry trees in the area — was engulfed by anger, sadness and disbelief.

"I'm heartbroken. I was so proud of our work," the 66-year-old said, taking a deep breath. "I don't see any of the usual signs of preparation for a job like this, such as marked trees or colored flags," Zunino added. "It seems haphazard and mean-spirited, almost as though someone was taking revenge on the habitat."

In 2010, the preserve had been reclassified as a "vegetation management area" — with a new five-year mission of replacing trees and shrubs with native grasses to improve access for Army Corps staffers, increase public safety and discourage crime in an area plagued by sex-for-drugs encampments.

The Army Corps declared that an environmental impact report on the effort was not necessary because it would not significantly disturb wildlife and habitat.

By Friday, however, nearly all of the vegetation — native and non-native — had been removed. Decomposed granite trails, signs, stone structures and other improvements bought and installed with public money had been plowed under.

In an interview, Army Corps Deputy District Cmdr. Alexander Deraney acknowledged that "somehow, we did not clearly communicate" to environmentalists and community groups the revised plan for the area 17 miles northwest of downtown Los Angeles. He added that the corps would "make the process more transparent in the future."

But Kris Ohlenkamp, conservation chairman of the San Fernando Valley Audubon Society, asserted that the corps had misrepresented its intent all along.

Walking Friday through what once had been a migratory stop for some of the rarest birds in the state — scissor-tailed flycatchers, yellow-billed cuckoos, least Bell's vireos, rose-breasted grosbeaks — Ohlenkamp said: "We knew that the corps had a new vision for this area, but we never thought it would ever come to this."

Frequent catastrophic floods prompted civic leaders in the 1930s to transform the river into a flood-control channel. Nearly the entire 51-mile river bottom was sheathed in concrete, except in a few spots such as the Sepulveda Basin.

Over the decades, awareness of the river's recreational potential grew. And with pressure from environmental groups, Los Angeles County and corps officials in the 1980s made major changes. The waterway and surrounding flood plain were slowly transformed into a greenbelt of parks, trees and bike paths, courtesy of bond measures approved by voters.

Then in 2010, the Environmental Protection Agency deemed the entire river to be navigable and therefore subject to protections under of the Clean Water Act.

A year ago, Army Corps of Engineers District Cmdr. Col. Mark Toy issued a license allowing the Los Angeles Conservation Corps to operate a paddle-boat program in the Sepulveda Basin, along a 1.5-mile stretch of river shaded by trees teeming with herons, egrets and cormorants.

This summer, paying customers will disembark a hundred yards from the corps' recent clear-cuts.

"Environmental stewardship is critical for us," Deraney said. "But assuring public safety and access to infrastructure designed to deal with flooding are paramount."

As he spoke, a Cooper's hawk swooped down and landed on a nearby tree stump.

louis.sahagun@latimes.com

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