The Pesky Cousins – Crows in Los Angeles

Posted by ravens at February 20th, 2007

http://www.quixo.com/los_angeles_crows.htm

Crows love L.A. too. Nice interview with local ornithologist.

Where do ravens fit in? It occurred to me just now that before all the modern people showed up. C. brachyrynchos would not have been nearly as numerous in the region, and that ravens would have soared over the hills and valleys much as they still do, but without all their smaller cousins getting in the way, and probably not in quite so large numbers as today. But there is plenty of foraging for everyone.

Posted in General, Inter-corvid behaviors| No Comments | 

The Del Rey-vens

Posted by ravens at December 6th, 2006

At dawn today in Hollywood I heard a familiar voice outside, reminding me to blog the story of what I saw in the Del Rey Hills yesterday, mid-afternoon. The Del Rey hills are the bluffs that rise above the Ballona Wetlands in west L.A., south of Marina del Rey. They have been continuously inhabited for thousands of years, but never so densely as now. They are also home to a pair of ravens – possibly the ones whose nest still sits on the side of the Airport Marina hotel, or whose nest is the one on the Pepperdine building on Sepulveda that was destroyed last week by window cleaners.

Hawks and ravens were sacred beings to the people who lived on the Del Rey Hills before the Europeans came to change things. In spite of the drastic and destructive change that they brought, the ravens and hawks still fly above the bluffs. So do hordes of crows. Lincoln Blvd., the main northbound artery to Venice and Santa Monica, runs down the bluff past Loyola Marymount University and on to the wetlands and the mercenary real estate development known as Playa del Rey (it is so mercenary that it destroyed and desecrated native remains in order to build a baseball diamond on top of a key archaeological site, a fitting monument to five centuries of genocide).

At the entrance to the university, above the wetlands, several fan palms stand as decorative elements. Yesterday at 2:30 or so, on a clear, sunny day, dry and breezy, a single red-tailed hawk had perched on one of the broad fans. I’d never have notice except that the air above the palm was filled with a circus of two dozen or so crows intent on dislodging the raptor. They might as well have been tiny gnats. The hawk was quietly ignoring them. But as I drew close I noticed that two of the crows were awfully large…

The two local ravens had joined in the mob, and seemed to be having a go at the hawk, except that the crows would dive at the ravens as well. I pulled into the LMU driveway to watch. The ravens broke away to fly tandem along and above the top of LMU’s University Hall (a long, large building built into the bluff to maintain the shape of the land). A crow or two pursued them to little effect as the ravens engaged in fine displays of the aerial manoevres that keep them safe from their foes, flipping in mid-flight to meet a diving bird with beak and talon. Then they flew back into the mob, which was slowly dispersing, having failed to disturb the hawk in any way. One moment a crow would swoop on a raven, the next moment a raven would be chasing a crow. The demeanor of the ravens the whole time seemed calm and nonchalant, as though the crow circus were just a divertissement. Finally the last crows and the two ravens disappeared over the bluff to the west. The hawk remained on its fan palm leaf, calmly observing the wetlands below, as though wholly unconcerned that vast tracts of its remaining habitat had been turned into housing during its own lifetime.

But in spite of the development still underway in the Los Angeles basin, the bird news is not all bad. A condor was seen in Topanga Canyon this year. Gnatcatchers have returned to Palos Verdes, and it may not be long before Bald Eagles are seen once again in the skies above the City of Angels.

Posted in Inter-corvid behaviors, Locations| No Comments | 

Territory defense heating up?

Posted by ravens at November 13th, 2006

I was almost at work, waiting for the light to change outside the gate to my university, when a crow chased a raven across the intersection at 8-10m above ground. Chased it right up Lincoln Blvd, but the last glimpse I got, the raven had got the upper hand of the dogfight.

Yesterday I watched one raven chase another over Sunset and LaBrea at about 45m altitude. Another raven was soarcling nearby. I’ve not seen any aggressive behaviors since last fall, so I don’t wonder if there is something about the run-up to breeding season that is bringing about more competition and aggressiveness.

Posted in Inter-corvid behaviors| No Comments | 

Ravens and crows in the hills

Posted by ravens at November 6th, 2005

On the way to a morning hike under clearing skies, we came across a disturbed landscape on a ridge overlooking Lake Hollywood. I spotted the raven right away, but many crows flew off (the raven did not) and answered my previous questions about whether or not they entered the hills much. I think this is an access point and work area for the DWP projects to stabilize the hillsides against erosion, and as Marzluff notes, disturbed areas are the crows’ gateway. Ravens were there again the next day, but not on the ground – a dad and his two kids were walking their dog on the ridge, so any foraging had been disturbed, and I couldn’t see anything really to forage for – grubs, I suppose. Aside from this, I’ve only seen crows flying over the hills, and not seen any in the hills or in GP.

FL000024

Posted in Inter-corvid behaviors, Locations, Questions| Comments Off | 

They were kung-fu fighting – !

Posted by ravens at October 2nd, 2005

Above the 7080 Hollywood Blvd building, not crows playing in the strong, cool breezes, but about a dozen crows mobbing a pair of ravens at about 5 p.m. Ravens finally gained altitude and returned Runyon-wards.

Conditions cooling and sunny but hazy (typical LA).

7080building

Posted in Inter-corvid behaviors, Locations, With photos| Comments Off |