[NatureNS] Nocturnal Migration for the 1st Week of September

From: "John Kearney" <john.kearney@ns.sympatico.ca>
To: <naturens@chebucto.ns.ca>
Date: Fri, 9 Sep 2016 18:11:05 -0300
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Hi All,

It was a busy week for nocturnal migration at Carleton, Yarmouth County.
There was a total of 1,383 calls at a rate of 198 calls per night. There was
an estimated minimum of 1,117 birds. Warbler composition fell to 79% of
calls due to the influx of Swainson's Thrushes and Veeries. The most common
birds for the week were Common Yellowthroat (190), American Redstart (160),
Magnolia Warbler (152), Northern Parula (125), Black-and-White Warbler
(116), Swainson's Thrush (88), and Black-throated Green Warbler (64). There
was a more than average flight of Wilson's Warbler, with 37 flight calls
recorded. The peak for the week and for the autumn season thus far was the
night of 2-3 September when 469 calls were recorded. Rare birds for the week
included 4 Prairie Warblers, 2 Pine Warblers and 1 Indigo Bunting. A sparrow
recorded at 10:22 pm on 6 September was a possible Seaside Sparrow. A
discussion of this flight call can be found on at my website at
http://www.johnfkearney.com/SESP.html. Additional graphics of the autumn
nocturnal migration at Carleton can be seen at:
http://www.johnfkearney.com/Carleton_YarmouthCounty_2016.html. A summary
list follows.

John

		
Estimated

	
Call

Minimum


Species

Count

Individuals*


Common Yellowthroat

190

150


American Redstart

160

124


Magnolia Warbler

152

122


Northern Parula

125

90


Black-and-White Warbler

116

90


Swainson's Thrush

88

58


Black-throated Green Warbler

64

54


Unidentified Warbler

47

43


Wilson's Warbler

37

31


Northern Waterthrush

34

24


Ovenbird

34

29


Chestnut-sided Warbler

32

27


Blackpoll Warbler

31

30


Black-throated Blue Warbler

31

29


Unidentified Warbler Genus Setophaga

30

28


Cape May Warbler

27

22


Yellow-rumped Warbler

27

24


Yellow Warbler

16

15


Unidentified Songbird

14

12


Savannah Sparrow

14

12


White-throated Sparrow

14

10


Unidentified Warbler Genus Oreothlypis

13

12


Palm Warbler

12

12


Veery

11

8


Lincoln's/Swamp Sparrow

10

8


Nashville Warbler

10

6


Blackburnian Warbler

9

7


Bay-breasted Warbler

7

16


Unidentified Sparrow

6

6


Mourning Warbler

6

5


Prairie Warbler

5

4


Solitary Sandpiper

3

1


Canada Warbler

2

2


Pine Warbler

2

2


Indigo Bunting

1

1


Rose-breasted Grosbeak

1

1


Seaside Sparrow

1

1


Tennessee Warbler

1

1


Total

1,383

1,117

* 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

 


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vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal><span =
style=3D'font-size:12.0pt;line-height:106%;font-family:"Book =
Antiqua",serif'>Hi All,<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:12.0pt;line-height:106%;font-family:"Book =
Antiqua",serif'>It was a busy week for nocturnal migration at Carleton, =
Yarmouth County. There was a total of 1,383 calls at a rate of 198 calls =
per night. There was an estimated minimum of 1,117 birds. Warbler =
composition fell to 79% of calls due to the influx of Swainson&#8217;s =
Thrushes and Veeries. The most common birds for the week were Common =
Yellowthroat (190), American Redstart (160), Magnolia Warbler (152), =
Northern Parula (125), Black-and-White Warbler (116), Swainson&#8217;s =
Thrush (88), and Black-throated Green Warbler (64). There was a more =
than average flight of Wilson&#8217;s Warbler, with 37 flight calls =
recorded. The peak for the week and for the autumn season thus far was =
the night of 2-3 September when 469 calls were recorded. Rare birds for =
the week included 4 Prairie Warblers, 2 Pine Warblers and 1 Indigo =
Bunting. A sparrow recorded at 10:22 pm on 6 September was a possible =
Seaside Sparrow. A discussion of this flight call can be found on at my =
website at <a =
href=3D"http://www.johnfkearney.com/SESP.html">http://www.johnfkearney.co=
m/SESP.html</a>. Additional graphics of the autumn nocturnal migration =
at Carleton can be seen at: <a =
href=3D"http://www.johnfkearney.com/Carleton_YarmouthCounty_2016.html">ht=
tp://www.johnfkearney.com/Carleton_YarmouthCounty_2016.html</a>. A =
summary list follows.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:12.0pt;line-height:106%;font-family:"Book =
Antiqua",serif'>John<o:p></o:p></span></p><table class=3DMsoNormalTable =
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