[nfc-l] Nocturnal Migration for the 1st Week of August in Nova Scotia

[John Kearney]

Hi All,

The rate of nocturnal movements of warblers almost doubled over the previous
week at Carleton, Yarmouth County, Nova Scotia. There was a total of 240
calls and at least 181 individual birds at a rate of 34 calls per night.
Warblers composed 99% of the calls recorded. Despite a continuing variety in
species composition, early migrating warbler species dominated the count.
The most common species were American Redstart (69 calls), Black-and-White
Warbler (45 calls), and Yellow Warbler (34 calls). The numbers of these
three species seemed to indicate true, south-bound migration, rather than
post-breeding dispersion. A summary list can be found below.

The closest weather radar that provide online base reflectivity and velocity
data while operating in clear air mode are in the state of Maine, at Caribou
and Portland. Both of these radars are located approximately 350 kilometers
from the monitoring station. The radars showed only a light density of
echoes (~60-70/cubic km) during the week. Velocities indicated that there
was some bird migration on each night when there was no rain.

Previous reports and more information can be found at:
http://www.johnfkearney.com/Carleton_YarmouthCounty_2016.html. 

John

 


Estimated


Call

Minimum


Species

Count

Individuals*


American Redstart

69

45


Black-and-White Warbler

45

32


Yellow Warbler

34

28


Unidentified Warbler

18

15


Chestnut-sided Warbler

13

10


Magnolia Warbler

10

9


Northern Parula

10

7


Blackburnian Warbler

9

8


Black-throated Blue Warbler

9

7


Unidentified Warbler Genus Setophaga

7

6


Tennessee Warbler

6

4


Canada Warbler

3

3


White-throated Sparrow

3

3


Bay-breasted Warbler

1

1


Black-throated Green Warbler

1

1


Cape May Warbler

1

1


Northern Waterthrush

1

1


Total

240

181

 

* Calls that are more than one minute apart plus calls that are less than
one minute apart divided by three and rounded up to nearest whole number

 

 



John F. Kearney

120 White's River Road

Carleton, Nova Scotia

CANADA  B5A 5R2

 


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Re: [nfc-l] Another warbler

[Ted Floyd]

Hey, Jerald & all.

Sorry for the snarky reminder, but posts to this list are useful and
interesting only if they are accompanied by date and location info.

And I could go off on "banding codes" and people without surnames, but
that's for the admin... :-)

Thanks!

Ted Floyd
Lafayette, eastern Boulder County, Colorado, USA

P.s. The night flights of late here in eastern Boulder County, Colorado,
USA, have been quite light, but I've had two nights in the past week with
Upland Sandpipers (casual at best in Boulder County, except for detections
of flyovers at night). Otherwise, just a very light trickle of Chipping
Sparrows, Lark Sparrows, and Solitary Sandpipers.







===

Ted Floyd
Editor, *Birding* magazine

Website: http://aba.org/birding
Twitter: http://twitter.com/BirdingMagazine

The ABA Blog: http://blog.aba.org/

On Sun, Aug 7, 2016 at 10:08 PM, Jerald  wrote:

> Hello all,
>
> Warbler migration has begun in earnest. I have had at least one warbler
> NFC every night this week so far, with three redstarts, NOWA, and a few
> others. This one came through this morning an hour before sunrise. It may
> not be identifiable, but the call is really clear so I thought I'd send it
> out to see if anyone could ID it for me.
>
> Thanks,
>
> Jerald
>
> --
> *Jerald*
>
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