[Tweeters] Re: Pine Siskins

Erica Zwick EZwick at mrsc.org
Thu Dec 1 12:12:45 PST 2005


 I have not seen any this year at our feeder, and I not recall not
seeing any last year either.

Erica Zwick
Seattle, WA

-----Original Message-----
From: Michael Hobbs [mailto:birdmarymoor at verizon.net] 
Sent: Wednesday, November 30, 2005 8:49 PM
To: Tweeters (E-mail); Henne Queisser
Subject: [Tweeters] Re: Pine Siskins

At first glance at my data, it seemed that Pine Siskins are always
common in fall.  However, a year-by-year breakdown shows a rather
different story.

Some years are good and some years are bad.

By the end of November in 2004, I'd had 8 weeks of solid Pine Siskin
sightings.  But in 1997, as with this year, I've had none.

Here's a quick look at the monthly sightings by year from my data
(showing the number of weeks in that month that I recorded PISI):

            Oct        Nov        Dec
1995       3             2            2
1996       1             1            0
1997       0             0            2
1998       2             4            3
1999       0             2            5
2000       2             3            4
2001       4             3            4
2002       2             4            4
2003       1             3            5
2004       4             4            5
2005       0             0            -

This data includes my weekly Marymoor visits (so I'm certain to have had
at least 1 trip per week per year), plus observations at my feeders,
plus any other birding trips I went on.  Simply looking at whether I
found siskins anywhere, anytime during each week should help mask
differences in "observer effort" - that is, even if I had multiple
siskin sightings within a particular week, it only gets 1 "point" above.

So, this looks like a bad year.  Are they dead, or elsewhere?

== Michael Hobbs
== Kirkland, WA
== http://www.scn.org/fomp/birding.htm
== birdmarymoor at verizon.net

----- Original Message -----
From: "Henne Queisser" <henneq at comcast.net>
To: <tweeters at u.washington.edu>
Sent: Wednesday, November 30, 2005 8:12 PM
Subject: Pine Siskins (Re: [Tweeters] Non=Marine Annas)


> Mary's comment about the lack of pine siskins is consistent with our
> experience here on Mercer Island--no pine siskins for quite some time.
Up
> until last year they were the second most abundant bird at our
feeders,
> house finches being the most common.
>
> Anyone know what happened to them?
>
> --Henne Queisser
> Mercer Island





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