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Our Barn Owl Was Killed by Rat Poison

January 18, 2014 by Elizabeth Weise

 
 
The dead Barn Owl we found and took to WildCare for rodenticide testing, Patient #1754, was found, indeed, to have died of rat poisoning. 
 
Many people don’t know that when a hawk or owl or other predator eats a poisoned rodent, that animal gets poisoned too. Please STOP using rat poisons (rodenticides)! These poisons are killing the very animals, like this Barn Owl, that naturally control rodents.
 
The Barn Owl was found to be internally toxic, diffusely discolored and badly hemorrhaged throughout. There was evidence of a heavy load of the rodenticide brodifacoum in her system — enough to kill her.
 
Shockingly, over 86% of tested WildCare patients show evidence of exposure to rat poisons! These animals are eating poisoned rodents and carrying varying loads of toxic poison in their systems as a result. Rat poison used by residents of San Francisco is having dangerous and detrimental effects on the wildlife of our area. A Great Horned Owl was found dead last year due to the same rat poisoning.
 
Rat poisons kill by making whatever animal eats them bleed to death internally – slowly and painfully. While the poisoned rats or mice are still alive, they (and their deadly load of poison) can be consumed by other predators including cats and dogs. Rodents are the basic food source for a number of different predators all the way up the food chain. It is a terrifying prospect; to kill many animals while targeting only one. We need to find better ways to live well with wildlife.
 
If you need help with any wildlife issues, please contact WildCare Solutions at 415.456.7283 (456-SAVE), or www.wildcarebayarea.org/wildlifesolutions.
 
Barn Owls are one of the most common owl species in the country, but seeing one, especially in the City, is always a treat. These silent nocturnal hunters often appear completely white against the night sky as they glide over open spaces in search of rodent prey. A family of Barn Owls can eat over 3,000 rodents in a single 4-month breeding season, which makes them a magnificent source of rodent pest control, but also one of the most common victims of secondary rodenticide poisoning. Barn Owls nest early in the season, usually producing eggs sometime between January and March.
 
A special thanks to everyone who made a contribution to the testing, especially to the San Francisco Forest Alliance for their substantial donation.

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Glen Park Association
2 weeks ago
Glen Park Association

Meet one of the Greenway’s most diligent volunteers -- A Townsend Warbler as far as Google knows. Progress in removing invasive oxalis is going well, but work remains! As the sun comes out, please join us at the Glen Park Greenway Native Meadow (between Lippard and Brompton Streets) to carefully remove invasive oxalis plants. Email our oxalis remediation lead, Kathy Keller at greenway@glenparkassociation.org if you can help! ... See MoreSee Less

Meet one of the Greenway’s most diligent volunteers -- A Townsend Warbler as far as Google knows. Progress in removing invasive oxalis is going well, but work remains! As the sun comes out, please join us at the Glen Park Greenway Native Meadow (between Lippard and Brompton Streets) to carefully remove invasive oxalis plants. Email our oxalis remediation lead, Kathy Keller at greenway@glenparkassociation.org if you can help!
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Glen Park Association
2 weeks ago
Glen Park Association

Join us THURSDAY JANUARY 19 at the Glen Park Association Quarterly meeting. We'll be in-person at the Glen Park Rec. Center at 6:30 PM. Our agenda includes:

-- A special presentation from QuitCarbon,
-- Meeting the new owners of @canyonmarket ,
-- Learning more about projects at @sfrecpark & @sfpublichealth, and
-- Electing 2023 GPA officers.

Have you renewed your membership for 2023 yet? Help keep our neighborhood vital by joining today at www.glenparkassociation.org/glen-park-association-membership/
... See MoreSee Less

Join us THURSDAY JANUARY 19 at the Glen Park Association Quarterly meeting. Well be in-person at the Glen Park Rec. Center at 6:30 PM. Our agenda includes:

-- A special presentation from QuitCarbon, 
-- Meeting the new owners of @canyonmarket , 
-- Learning more about projects at @sfrecpark  & @sfpublichealth, and
-- Electing 2023 GPA officers.

Have you renewed your membership for 2023 yet? Help keep our neighborhood vital by joining today at https://www.glenparkassociation.org/glen-park-association-membership/
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Coyote Yipps
Friends of Noe Valley Rec 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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