[EBB Sightings] Warbling Vireo arrival dates

--Apple-Mail-1--494438597
Content-Transfer-Encoding: 7bit
Content-Type: text/plain;
	charset=US-ASCII;
	format=flowed

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
--Apple-Mail-1--494438597
Content-Transfer-Encoding: 7bit
Content-Type: text/enriched;
	charset=US-ASCII

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:



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. 

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. 

(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.



--Apple-Mail-1--494438597--