[NatureNS] Nocturnal Migration for the Week of 21-27 September 2015

From: "John Kearney" <john.kearney@ns.sympatico.ca>
To: <naturens@chebucto.ns.ca>
Date: Mon, 28 Sep 2015 16:40:26 -0300
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Hi All,

Nocturnal migration was light but steady throughout this past week over
Carleton, Yarmouth County. A total of 817 calls, representing at least 669
birds, was recorded. Compared to last week, warblers declined from 86% of
calls to 68% while sparrows increased from 8% to 24%. Thrushes remained the
same at 4% of calls. The most common bird of the week was Common
Yellowthroat at 117 calls, followed by White-throated Sparrow (72), and
Yellow-rumped Warbler (63). The count of this late warbler was nearly triple
what it was last week. Palm Warblers continued in good numbers (55) while
there was a noticeable decline in the once dominant Magnolia Warbler from
329 calls last week to 55 calls this week. The unidentifiable to species
Melospiza flight call also increased three-fold this week (38 calls). These
likely represent mostly Swamp Sparrows at this time in September. The rare
bird for the week was a Brown Thrasher at 6:41 am on 22 September. Uncommon
warblers included a Pine Warbler at 5:41 am on 28 September. A summary table
follows. Additional information can be found at:
http://www.johnfkearney.com/Carleton_YarmouthCounty_2015.html.

John

 

Species, followed by Total Calls and Estimated Minimum Individuals

Common Yellowthroat   117       98

White-throated Sparrow          72        58

Yellow-rumped Warbler            63        40

Magnolia Warbler        55        46

Palm Warbler   55        46

Northern Parula           47        35

Savannah Sparrow        44        40

Lincoln's/Swamp Sparrow         38        30

Unidentified Warbler  38        38

Black-and-White Warbler        37        32

Unidentified Sparrow   34        29

Swainson's Thrush       34        20

Black-throated Green Warbler 25        25

Ovenbird          25        22

Blackpoll Warbler        19         17

Unidentified Songbird 17         17

Black-throated Blue Warbler   16         12

Unidentified Warbler Genus Setophaga           16         16

Chestnut-sided Warbler           13         9

American Redstart       10         7

Nashville Warbler        10         7

Chipping Sparrow         6          5

Bay-breasted Warbler  5          4

Blackburnian Warbler  3          2

Dark-eyed Junco          3          2

Pine Warbler    2          2

Prairie Warbler            2          1

Solitary Sandpiper       2          1

Song Sparrow   2          1

Bobolink           1           1

Brown Thrasher            1           1

Cape May Warbler       1           1

Hermit Thrush 1           1

Mourning Warbler        1           1

Rose-breasted Grosbeak           1           1

Wilson's Warbler         1           1

Total    817       669


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</o:shapelayout></xml><![endif]--></head><body lang=3DEN-CA link=3Dblue =
vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>Hi =
All,<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>Nocturnal =
migration was light but steady throughout this past week over Carleton, =
Yarmouth County. A total of 817 calls, representing at least 669 birds, =
was recorded. Compared to last week, warblers declined from 86% of calls =
to 68% while sparrows increased from 8% to 24%. Thrushes remained the =
same at 4% of calls. The most common bird of the week was Common =
Yellowthroat at 117 calls, followed by White-throated Sparrow (72), and =
Yellow-rumped Warbler (63). The count of this late warbler was nearly =
triple what it was last week. Palm Warblers continued in good numbers =
(55) while there was a noticeable decline in the once dominant Magnolia =
Warbler from 329 calls last week to 55 calls this week. The =
unidentifiable to species <i>Melospiza</i> flight call also increased =
three-fold this week (38 calls). These likely represent mostly Swamp =
Sparrows at this time in September. The rare bird for the week was a =
Brown Thrasher at 6:41 am on 22 September. Uncommon warblers included a =
Pine Warbler at 5:41 am on 28 September. A summary table follows. =
Additional information can be found at: <a =
href=3D"http://www.johnfkearney.com/Carleton_YarmouthCounty_2015.html">ht=
tp://www.johnfkearney.com/Carleton_YarmouthCounty_2015.html</a>.<o:p></o:=
p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>John<o:p></=
o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p>&nbsp;=
</o:p></span></p><p class=3DMsoNormal>Species, followed by Total Calls =
and Estimated Minimum Individuals<o:p></o:p></p><p =
class=3DMsoNormal>Common Yellowthroat&nbsp;&nbsp; =
117&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 98<o:p></o:p></p><p =
class=3DMsoNormal>White-throated =
Sparrow&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
72&nbsp;&nbsp;&nbsp;&nbsp;&