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After three years away, the owls are back in Glen Park

April 10, 2019 by Murray Schneider

Juvenile owls in a eucalyptus tree in Glen Canyon Park, April 6, 2019. (click on the photo to enlarge.) Photo by Michael Waldstein.

The missing great horned owls have returned!

A eucalyptus tree only yards from the Recreation Center has once again become a wooded refuge to a great horned owl family. Their return comes three years after Glen Canyon’s resident owls disappeared.

On March 16, 2016 a distant relative was found dead on a trail just west of the creek, a victim of rat poison. Either from homes or from businesses, San Franciscans continue using bait boxes. Owls consume rodents that have entered and left such traps and then die from the poison.

The corpse of the healthy great horn owl female was transferred to the California Department of Fish and Wildlife and a necropsy was performed.

A preliminary report was issued on March 23, 2016 which found the bird’s death was consistent with anticoagulant rodenticide toxicosis.

But after a break of three seasons, an adult pair and their two chicks have once again taken up residence in the park.

Their nest is made of leafy eucalyptus duff, fronted by a lengthy bib of bark.

Recently the two juveniles recently posed for photos from eager birders, their yellow eyes halos, their ear tufts white to buff.

Ignoring the onlookers, each spent time grooming one another. Secure in their bower, they swiveled their necks at obtuse angles. As adults, such torques make startling 180 degrees turns.

Group of retirees looking for great horned owl – April 8, 2019. (click on the photo to enlarge.) Photo by Murray Schneider.

The two infants extricated themselves from braids of branches their parents had woven. They were two fluffs of fur, white in color, decidedly visible, carpeted in a blanket of leaves that did little to disguise their scruffy and mottled down.

Reaching adulthood, the duo’s soft and sooty fledged feathers will keep each warm, allowing each to fly silently, better to perfect stealth-like predation upon rabbits, gophers, skunks, even crows, ravens and hawks. With their powerful talons, hoot owls can sever the spine of larger mammals, taking 28 pounds of pressure to relinquish their grasp.

As eager birders watched, the siblings roosted and snuggled, the bigger of the two more conspicuous as its tiny ears, the shape of the Transamerica building, stood at attention.

The raptors’ parents were out and about, possibly hunting morsels for the ravenous sibs. At their tender age, each owlet is capable of downing up to five or six rodents an evening, and at the age of nine to 10 weeks are capable of leaving the nest and hunting for themselves.

Children on a Dolores Huerta Elementary School field trip, with teacher and parents, in search of the owl tree – April 6, 2019. (click on the photo to enlarge.) Photo by Murray Schneider.

In a month or two they’d be on their own, ready to take flight, establishing their own arboretum domesticity throughout the City.

The most widely distributed owl in America, the nocturnal great horned owl is perfectly at home in Glen Canyon, replete with habitats of woodland interspersed with California native grasses.

Now, until the baby owls fly off, they are a neighborhood draw.

Such was the case on a recent day when a group of children from Chenery and Randall Street’s Dolores Huerta Elementary (once known as Fairmont) accompanied by their teacher, Helena Young, milled up trail from the owl tree that was only a few feet from where the poisoned female was found in 2016.

Young was puzzled as to where the owl tree could be found.

She approached two walkers, both of whom had left the owl tree only minutes earlier.

“We heard the baby owls are back,” said Young. “The students dissected owl pellets in class. Can you tell us where we can find the owls?”

Photographs of the owls were shared; then directions provided.

Helena Young quickly herded the children, then trooped off.

Over her shoulder she called, “Isn’t it wonderful learning about the wonders of the City.”

 

Filed Under: Featured, Glen Canyon Park, Wildlife

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IMPORTANT UPCOMING DATES

Upper Noe Neighbors Community Meeting Wednesday, May 21, 7 p.m.
Upper Noe Recreation Center auditorium
295 Day Street
Agenda


San Francisco Department of Public Works logoDPW Love Our City
District 8 Cleanup Day
Saturday, June 7, 9 a.m. to afternoon
Learn more and sign up here


 

Logo Center for Creative Exploration

The Center for Creative Exploration
Explore all the Colors of the Rainbow
one-day workshop
Saturday, June 7, 10 a.m. to 4 p.m.
300 Chenery Street
Learn more and link to registration here


Weeding Party
June 21, 10 a.m. to noon
100 block of Arlington at Charles
Join neighbors on the North end of the Cut to keep down the weeds and beautify top to bottom. Tools, lunch and good company provided.


Monthly cleanup on the Greenway
First Saturday of the Month (usually)
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Friends of Glen Canyon’s
Glen Canyon Habitat Restoration
Every third Saturday 9:30 a.m to noon
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Glen Park Association is at San Francisco Public Library Glen Park Branch.
2 days ago
Glen Park Association

Photos and Fun courtesy of the Glen Park Library!
It was a great turnout at the Glen Park Library Open House on Saturday May 17th!

Thank you to all who attended and a big thank you to Glen Park Branch Library Manager Darren Heiber and his staff for a fantastic day!! 🙌🏽

San Francisco Public Library Arion Press | Artist Books Museum of Craft and Design Rafael Mandelman 🏳️‍🌈 #glenparklibrary #arionpress #museumofcraftanddesign #glenparksf #sanfrancisco #InCommunity
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Photos and Fun courtesy of the Glen Park Library! 
It was a great turnout at the Glen Park Library Open House on Saturday May 17th!

Thank you to all who attended and a big thank you to Glen Park Branch Library Manager Darren Heiber and his staff for a fantastic day!! 🙌🏽

@sfpubliclibrary @arionpress @museumofcraftanddesign @rafaelmandelmand8 #glenparklibrary #arionpress #museumofcraftanddesign #glenparksf #sanfrancisco #incommunity
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Glen Park Association is at Glen Park Recreation Center.
2 days ago
Glen Park Association

Qi Gong & Tai Chi Thursdays at the Glen Park Rec Center!

Thursdays 2:00PM - 2:45PM
Room #1
Led by led by Ashima Sarin

Beginners and All Levels of Mobility Are Welcome! It’s FREE and drop-in!

(There will be no class the second half of June and July)

📍Glen Park Rec Center, 70 Elk Street

QUESTIONS? CALL 415-239-4007
... See MoreSee Less

Qi Gong & Tai Chi Thursdays at the Glen Park Rec Center!

Thursdays  2:00PM - 2:45PM 
Room #1
Led by led by Ashima Sarin

Beginners and All Levels of Mobility Are Welcome! It’s FREE and drop-in! 

(There will be no class the second half of June and July)

📍Glen Park Rec Center, 70 Elk Street 

QUESTIONS? CALL 415-239-4007
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Blog Roll

Coyote Yipps
Friends of Upper Noe Recreation Center
Glen Park Neighborhoods History Project
Open SF History
Sunnyside Conservatory
Sunnyside History
Sunnyside Neighborhood Association
Tramps of San Francisco
Upper Noe Neighbors

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