Hi Mike and Tweeters,

Actually, just in case somebody was going to go looking, the roost on Boat
St. near Agua Verde (and my office building) is no more. The tree that the
cormorants were roosting in was cut down this past fall. I'm guessing that
they've moved further north along the canal, towards or into the Fill.

Here is a link to information from eBird data that Michael Schrimpf,
Charlie Wright, and I have been collecting regularly at UW Sakuma Viewpoint
for the past few years, in the middle of the day: Change in DCCO abundance
pre- and post- roost tree removal in Fall
2011<http://ebird.org/ebird/GuideMe?src=changeDate&speciesCodes=doccor&getLocations=hotspots&hotspots=L351849&parentState=US-WA&reportType=species&monthRadio=on&bMonth=01&eMonth=12&bYear=2010&eYear=2012&yearOptions=separateYears&continue.x=44&continue.y=11&continue=Continue>

Cheers,
Emily

Emily Runnells
Graduate Student
University of Washington
School of Aquatic and Fishery Sciences

On Fri, Mar 23, 2012 at 9:45 AM, Michael Clawson <
michael.v.clawson at gmail.com> wrote:

> There are similar roosts, on Boat st near UW and Augau Verde, and in
> Kenmore near St. Edwards state park, and even further North into Bothell in
> the large trees that line the canal. Also there is a communal roost of
> crows in Bothell and GBH behind the Kenmore park and ride. Communal
> roosting is quite the spectacle, especially with such large birds! They are
> also a great way to get non-birders in sheer awe of nature.
>
> Thanks for the heads up about the one in fremont Dennis!
>
> Thanks,
>
> Mike Clawson
> Monroe, Wa
>
> On Fri, Mar 23, 2012 at 9:33 AM, Dennis Paulson <dennispaulson at comcast.net
> > wrote:
>
>> I know this has been mentioned before, but it deserves more attention. I
>> just happened to be on Nickerson St. in Seattle late yesterday afternoon
>> (6:15 pm), and I parked next to the ship canal at 180 Nickerson to attend a
>> meeting. As we exited the car, we realized there was an ornithological
>> event going on right there. Double-crested Cormorants were coming in to
>> roost in the poplars adjacent to the canal, and it was a real treat to
>> watch them.
>>
>> One after another bird came in to land in the branches of these tall
>> leafless trees. Sometimes they would make it, sometimes they wouldn't and
>> either miss completely or land and then fall off the branch, presumably
>> because they couldn't get a good enough grip with those big totipalmate
>> feet. Sometimes one would land next to another one and actually knock it
>> off its perch or promote a squabble that ended with one bird moving down
>> the branch or even flying off. Some birds spontaneously flew out from the
>> roost and circled around, perhaps to get a better perch on a second try.
>> Mostly they were spaced out well apart from one another.
>>
>> Watching the birds come in to land was a lesson in aerial agility (or
>> lack thereof). These are big birds coming in at speed, and the branches are
>> rather slender, many of them angled well away from horizontal. You could
>> see a variety of strategies to accomplish the rather awkward landing. It
>> was quite cold although fortunately not raining, and we stood outside for
>> 15 minutes and were in turn amused, amazed, and appalled. It's not a great
>> place for photography, as the daylight is dimming, but it was reasonably
>> light when birds started to come in, and it would be brighter on a sunny
>> evening. A person on an adjacent roof with a long lens could have great
>> opportunities. By the time we left, after dark, it looked as if well over
>> 100 birds were there. Perhaps they sleep in in the morning for additional
>> views and photography, but it will have to be less entertaining than the
>> evening arrivals.
>>
>> This spot deserves a daily influx of birders to watch the spectacle.
>> Don't stand directly below them, but by all means check out the show!
>>
>> Dennis
>> -----
>> Dennis Paulson
>> 1724 NE 98 St.
>> Seattle, WA 98115
>> 206-528-1382
>> dennispaulson at comcast.net
>>
>>
>>
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