Ravens vs Great Horned Owls by Patricia Greene

Dusk, mist, Great Horned Owl

We’re always interested in our forest’s most spectacular residents: The Great Horned Owls. Today we saw this fascinating account from Patricia Greene on a birding group, and are re-printing it below with permission.

I and others have been hearing Great Horned Owls in the UCSF Mt Sutro forest–usually at night or the wee hours of the morning. This afternoon ~2:30 I was walking up the North Ridge trail and was surprised to hear an owl.

Then I noticed that the band of Ravens that is a fixture on the Mt. Sutro/Twin Peaks ridge was thrashing around excitedly in the woods not too far from the trail. The object of their excitement turned out to be a Great Horned Owl. I got my binocs on it briefly, but clearly, before it took off. Around the next switchback, the Ravens were still having a riot, and now I found two Great Horned Owls perched together enduring intense Raven harassment.

Soon one of the owls took off drawing most of the Ravens with it, but the other one remained and was still there when I returned from the summit.

This was on the North Ridge trail a short distance below the junction with the Mystery Trail.

Note: We’ve added the map below for reference.

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One Response to Ravens vs Great Horned Owls by Patricia Greene

  1. Sutro Resident says:

    Seems like there are way too many ravens (or are they crows?), the flock is huge, a crazy number of them can be seen flying in a group here. and I see them harassing all kinds of birds, from hawks and owls to others that they eat.

    Like pigeons it seems like the raven/crow population gets out of control.

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