Re: [SBB] BASW's

[Mike Rogers <[[email protected]]>]

Troy,

We have no breeding Bank Swallows in the South Bay. These are migrant 
birds that join the post-breeding swallow flocks in bayside spots like 
Alviso, Sunnyvale Water Pollution Control Plant, etc. The September 
timing is typical, and we have several late September records (even as 
late as 1 October in 2003). There also are several late June/July 
records that seem to be an earlier post-breeding dispersal (many aged as 
juveniles), perhaps from nearer breeding areas (Ft Funston, S.F.?) and 
spring migrants mid-April through May.

The bird is always a rarity, though, with perhaps up to 3 or 4 birds or 
so a year being found in Santa Clara County.

Mike Rogers
Sunnyvale


Troy Rahmig wrote:
> Hi all,
> Just curious about the ongoing Bank Swallows in Alviso. Is this 
> typical of this time of year or something of a new phenomenon. Are 
> these just birds migrating through or is there a year round population 
> that persists in the south bay? Does anyone have any ideas about the 
> nearest known Bank Swallow breeding colonies?
> *Troy Rahmig*
>
> *Jones & Stokes *
>
> Wildlife Biologist
>
> 2841 Junction Ave • San Jose CA 95134
>
> W: 408.434.2244 • C: 916.317.5972 • Fx: 408.434.2240
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>     -----Original Message-----
>     *From:* [[email protected]]
>     [mailto:[[email protected]]] *On Behalf Of
>     *[[email protected]]
>     *Sent:* Monday, September 18, 2006 4:02 PM
>     *To:* [[email protected]]
>     *Subject:* [SBB] A good day
>
>     All,
>     This morning after getting good views of the NORTHERN PARULA
>     [county life bird #328] and after re-finding the MACGILLIVRAY'S
>     WARBLER with Kathy Parker we, along with everyone else that
>     morning, missed the Green-tailed Towhee [Mike Mammoser and I
>     finally left at about 11:30] and I then saw what I thought was at
>     least one BANK SWALLOW on Elizabeth St in Alviso. After reading
>     Mike Rogers recent post (3 BASW) I became aware that I probably
>     also had three BASW and that I had probably seen at least one
>     earlier. My problem is that I only counted those BASW with the
>     spike extending from the breast band! I did see a couple swallows
>     with wide breast bands with no spike and assumed that they were
>     juvenile Tree Swallows not BASW. The breast bands on the other two
>     BASW [without the spike] did not seem very well defined, in the
>     future I will be sure to also look for pale forehead. I was
>     surprised to see the VIOLET-GREEN SWALLOW (I had one) and the
>     NORTHERN ROUGH-WINGED SWALLOW.
>     Take care,
>     Bob Reiling
>
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