[EBB Sightings] Warbling Vireo arrival dates

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Dave 
Is there any mention for Blue Grosbeak as a summer Berkeley visitor,
while there still may have been habitat?
Rich Cimino
Pleasanton

-----Original Message-----
From: sightings-admin at diabloaudubon.com
[mailto:sightings-admin at diabloaudubon.com] On Behalf Of Dave Quady
Sent: Tuesday, March 15, 2005 11:06 PM
To: East Bay Birds Birds
Subject: Re: [EBB Sightings] Warbling Vireo arrival dates


In 1948, Henry G. Weston, Jr. published the earliest arrival dates in
Berkeley of fifteen common summer residents over the years 1911 - 1948
(The Condor, Vol 50, pp 81-82). His earliest-ever date for Warbling
Vireo was March 9, if I read his chart correctly. His average first-seen
date was about March 22 (eyeballed), and his latest credible first-seen
date was April 8.

Weston also gives earliest arrival dates (and eye-balled averages) for
some other species Steve mentioned: Allen's Hummingbird -- Jan 30 (Feb
11), Pac-slope Flycatcher -- Mar 10 (Mar 25), Orange-crowned Warbler --
Feb 22 (Mar 1), Black-headed Grosbeak -- Apr 4 (Apr 10;data from all 37
years), and Chipping Sparrow -- Mar 28 (Apr 13; but only ten data points
for this species).

It's an interesting little paper, available free on-line through SORA,
at

http://elibrary.unm.edu/sora/Condor/index.php

Dave Quady
Berkeley, California
davequady at att.net

On Mar 15, 2005, at 10:34 PM, Sgloverccc at aol.com wrote:



Hi all,
Mid-March is a very typical arrival date for Warbling Vireos in the East
Bay. The earliest date in my East Bay notebooks was for 3/8 and I have
many records by 3/14. As Nat mentioned, they are one of our earlier
migrants. One year on 4/1 I had no less than 20 of them singing along a
1.5 mi. stretch of Pinehurst Rd. between Moraga and Redwood R.P. These
early arrivals are apparently territorial males and should remain here
through the summer, rather than migrants that will continue north. 
As in past years there has been some discussion about early arrivals of
various species. Mid-March is also a typical arrival date for Bullock's
Oriole with some records as early as mid-February. Ditto for Hooded
Oriole which also typically arrives about mid-March but has been seen
quite a few times in very early March. 
Birders seem to have a sense (often mistaken) that anything arriving
before April must be early. In fact, quite a few species arrive in March
(or earlier): Allen's Hummingbird, Pacific-slope Flycatcher, all five of
our breeding swallows, Blue-gray Gnatcatcher, Warbling and Cassin's
(very late March) Vireos, Orange-crowned Warbler, Black-headed Grosbeak
and Chipping Sparrow.
Good birding,
Steve Glover
Dublin


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there any mention=20
for Blue Grosbeak as a summer Berkeley visitor, while there still may =
have been=20
habitat?
Cimino
class=3D823561505-17032005>Pleasanton
  

  
-----Original Message-----
From:=20
  sightings-admin at diabloaudubon.com =
[mailto:sightings-admin at diabloaudubon.com]=20
  On Behalf Of Dave Quady
Sent: Tuesday, March 15, 2005 =
11:06=20
  PM
To: East Bay Birds Birds
Subject: Re: [EBB =
Sightings]=20
  Warbling Vireo arrival dates

In 1948, Henry G. =
Weston, Jr.=20
  published the earliest arrival dates in Berkeley of fifteen common =
summer=20
  residents over the years 1911 - 1948 (The Condor, Vol 50, pp 81-82). =
His=20
  earliest-ever date for Warbling Vireo was March 9, if I read his chart =

  correctly. His average first-seen date was about March 22 (eyeballed), =
and his=20
  latest credible first-seen date was April 8.

Weston also gives =
earliest=20
  arrival dates (and eye-balled averages) for some other species Steve=20
  mentioned: Allen's Hummingbird -- Jan 30 (Feb 11), Pac-slope =
Flycatcher -- Mar=20
  10 (Mar 25), Orange-crowned Warbler -- Feb 22 (Mar 1), Black-headed =
Grosbeak=20
  -- Apr 4 (Apr 10;data from all 37 years), and Chipping Sparrow -- Mar =
28 (Apr=20
  13; but only ten data points for this species).

It's an =
interesting=20
  little paper, available free on-line through SORA,=20
  at

http://elibrary.unm.edu/sora/Condor/index.php

Dave=20
  Quady
Berkeley, California
davequady at att.net

On Mar 15, =
2005, at=20
  10:34 PM, Sgloverccc at aol.com wrote:


  
Hi =
all,
Mid-March=20
    is a very typical arrival date for Warbling Vireos in the East Bay. =
The=20
    earliest date in my East Bay notebooks was for 3/8 and I have many =
records=20
    by 3/14. As Nat mentioned, they are one of our earlier migrants. One =
year on=20
    4/1 I had no less than 20 of them singing along a 1.5 mi. stretch of =

    Pinehurst Rd. between Moraga and Redwood R.P. These early arrivals =
are=20
    apparently territorial males and should remain here through the =
summer,=20
    rather than migrants that will continue north. =
past=20
    years there has been some discussion about early arrivals of various =

    species. Mid-March is also a typical arrival date for Bullock's =
Oriole with=20
    some records as early as mid-February. Ditto for Hooded Oriole which =
also=20
    typically arrives about mid-March but has been seen quite a few =
times in=20
    very early March. 
Birders=20
    seem to have a sense (often mistaken) that anything arriving before =
April=20
    must be early. In fact, quite a few species arrive in March (or =
earlier):=20
    Allen's Hummingbird, Pacific-slope Flycatcher, all five of our =
breeding=20
    swallows, Blue-gray Gnatcatcher, Warbling and Cassin's (very late =
March)=20
    Vireos, Orange-crowned Warbler, Black-headed Grosbeak and Chipping =
Sparrow.
Good=20
    birding,
Steve=20
    Glover
Dublin
=

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