Re: [SBB] Common Poorwill at Almaden Quicksilver

[[[email protected]]]

In a message dated 6/18/2005 12:57:55 PM Pacific Daylight Time,  
[[email protected]] writes:

Their  seasonal 
movement, or presence, is not very well understood. If there was  a 
significant number (are there any?) of records of their presence in  
winter locally, we might more easily accept that they are present  
year-round and are just undetectable during winter in this area. Such  
is the case for many nocturnal, cryptically-marked  species.



I certainly agree there are aspects of this species' occurrence in our  
region that are not well understood at all. But, for what it is worth, over here  
on the coastal slope in Santa Cruz Co. and in the Loma Prieta  vicinity there 
are a number of records spanning the period  of late Oct through Feb., and some 
of them are of multiple birds. There  have been apparent spikes in activity 
during odd winter warm spells (such  as I recall observing near Loma Prieta). 
On the other hand, some records have  been of birds observed during very cold 
periods, even during the big freeze of  Dec 1991! So I'm not sure how local 
temperatures play into it. It could be  that there are relatively few winter 
records locally because the species  does not call as much then, and there are 
fewer folks visiting the areas where  they may occur. 
 
I am of the opinion that we have a resident component to our population in  
the Santa Cruz Mountains region. Don Roberson indicates that the Monterey  
population (at least in the Santa Lucia Mountains) is also thought to be  
resident, and there is other interesting info in the species account in book his  
Monterey Birds.
 
David  Suddjian
Capitola CA
[[email protected]]
Santa Cruz Bird Club
Bird  Records Keeper
Bird Club Website: _www.santacruzbirdclub.org_ (http://www.santa/) 
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