Woodsy the Gopher Killer

by Tony on March 3, 2009

woodsy-owl

“Give a hoot – Don’t pollute
Never be a dirty bird.
In the city or in the woods,
Help keep America
Looking good.”

Woodsy Owl

The Woodsy Owl PSA (Public Service Announcement) was developed by the Forest Service and ran on TVs across the nation in the early ‘70s.  I guess it worked because as a small child I was mesmerized.  O.K., the Woodsy PSA may not have been quite as flashy as the egg (brain) in the frying pan or the Native American guy with the tear but its simplicity was its very genius.  After all, who can resist a singing owl?

In my childhood innocence, little did I know that my hero Woodsy was actually a merciless killer.

The Barn Owl is one of the most skilled hunters of rodents in North America.  The design of its wings renders it almost silent in flight and its “satellite dish” face helps pick up the faintest leaf rustle or mouse peep from hundreds of feet carl-gopher-caddy-shackaway, enabling it to hunt in total darkness. These features make the Barn Owl a gopher’s worst nightmare. Owls are voracious predators of gophers, which kill grapevines and can cause erosion problems in the vineyard.  While an adult may eat one or two gophers a night, each chick may eat from two to five.  That’s a lot of gophers over time.  And that’s one big reason we welcome Barn Owls to the Michel-Schlumberger estate with nesting boxes and tall hunting perches.  And just as we allow the Ladybugs and Lacewings to take care of our insect pests, we happily encourage the Barn Owl to deal with this pesky rodent.  Just how many gophers do our resident “flying cats” consume in our vineyard in a year?   Well, lets crunch the gopher numbers:

2 Adult Barn Owls x 5 Nest Boxes = 10 Barn Owls
3 Owlets survive per box x 10 nest Boxes = 30 Owlets
————————————————————
40 (Total Owls) x 365 Days (Consume 1 Gopher a day) =
14,600  Total Gophers killed per year
————————————————————
14,600 (Gophers killed per year) x 0.34 pounds (Average weight per Gopher) =  5,017 pounds or 2.5 tons of Gophers per year!!!

They may seem to be eating well but owls need help.  Although the Barn Owl is one of the most widely distributed birds in the world, found on all continents except Antarctica, they are now considered rare in many states, and are listed as endangered in others. A major factor is the loss of adequate nesting sites due to urbanization and agriculture development.  But small farms such as ours are an owl’s dream – plenty of nesting sites, perches and, of course, gophers.  I think Woodsy would be very proud.

Tony

P.S.  Fun Fact: Barn owls do not hoot. Their call is an unmistakable and very loud hiss, somewhere between the sound of leaking gas and a jet on takeoff.  Hear it for yourself:

http://www.owlpages.com/sounds/Tyto-alba-3.mp3

P.P.S.  For a bit of a blast from the past, check out the original 1970 Woodsy PSA:

http://www.youtube.com/watch?v=6Zpz1k5Mv4o

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{ 6 comments… read them below or add one }

Oscar Quevedo March 4, 2009 at 10:48 am

If I was a owl I would live in your vineyards. It’s the owl’s dream! You could make a wine with this topic!

Joe Lange March 4, 2009 at 11:01 am

Great analysis on how much work a barn owl can do for us in the vineyards. And it’s win-win for both the owls and viticulturists!

Here’s a pic of a barn owl caught mid-flight coming out of its nesting box in one of our vineyards:

Joe Lange March 4, 2009 at 11:57 am
Tony March 4, 2009 at 12:30 pm

WOW! What a very cool photo! Reminds me of a former viticulturist at Michel-Schlumberger, years ago. He couldn’t tell if one of our owl boxes was occupied. And he really wanted to know. He gave the post below the box a little shake. A large barn owl promptly flew out and made a large “depsosit” right on the head of the viticulturist. He learned the hard way about not harassing owls…

tony

Tony March 4, 2009 at 12:40 pm

Hey, speaking of cool photos, if anyone is going to be out and about for Barrel Tasting Weekend(s) you should stop by Michel-Schlumberger. We’re gonna have a brand new display of bug/bird/bat/sheep photos, various bird houses, a worm composting bin and other fun stuff related to organic, sustainable farming. And some killer wine, too.

tony

Joe Lange March 20, 2009 at 8:35 am

Hi Tony-

I’ll pass along your compliments to my brother Aaron, the photog around LangeTwins Winery and Vineyards.

We’ll do our best to avoid the surprise ‘deposits’ when out checking owl boxes – that’s a lesson I’d prefer to learn the easy way!

Cheers,

Joe

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