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Nocturnal migration this week was quite spectacular. A total of 2,654 night
flight calls was more than double the previous high for a week. The big push
occurred the night of September 7-8 when 1,495 flight calls were recorded.
Just how big a night this was relative to the rest of the fall migration is
clearly illustrated in the graph on my website
(http://www.johnfkearney.com/nocturnal_monitoring/). No flight calls were
recorded the night of the big rain storm (September 10-11) but other than
that one night, migration was steady at 100 to 330 calls per night.
The most common warblers were Common Yellowthroat, Northern Parula,
Ovenbird, Magnolia Warbler, Black-throated Green Warbler, and American
Redstart in that order (a graph for some warbler species can also be found
on my website). The most common sparrows were Savannah Sparrow,
Swamp/Lincoln's Sparrow, and White-throated Sparrow. Counts on the ground
would indicate that Lincoln's Sparrow dominated by far those birds in the
Swamp/Lincoln's call complex. The most common thrush was Swainson's Thrush.
Rare or unusual birds this week included Vesper Sparrow (total of 6 calls in
2 nights), Indigo Bunting (total of four calls in 3 nights), and Prairie
Warbler (5 calls in one night).
The summary of nocturnal migration over Doctor's Brook, Antigonish County,
for the week beginning the evening of September 7 and ending the morning of
September 14 is as follows:
Solitary Sandpiper - 1
Black-capped Chickadee - 3
Veery - 3
Swainson's Thrush - 103
Northern Parula - 178
Chestnut-sided Warbler - 10
Magnolia Warbler - 158
Cape May Warbler - 47
Black-throated Blue Warbler - 36
Yellow-rumped Warbler - 61
Black-throated Green Warbler - 100
Blackburnian Warbler - 30
Palm Warbler - 7
Bay-breasted Warbler - 25
Blackpoll/Yellow Warbler - 66
Black-and-White Warbler - 44
American Redstart - 98
Prairie Warbler - 5
Other unidentified warblers of the genus Setophaga - 251
Nashville/Tennessee Warblers - 26
Ovenbird - 167
Northern Waterthrush - 8
Mourning Warbler - 81
Common Yellowthroat - 366
Wilson's Warbler - 12
Canada Warbler - 2
Other unidentified warblers - 226
Chipping Sparrow - 1
Vesper Sparrow - 6
Savannah Sparrow - 165
Song Sparrow - 16
Lincoln's/Swamp Sparrow - 113
White-throated Sparrow - 102
Other unidentified sparrows - 52
Rose-breasted Grosbeak - 1
Indigo Bunting - 4
Other unidentified songbirds - 53
Other unidentified birds - 22
Total - 2,654
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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"'>Nocturnal =
migration this week was quite spectacular. A total of 2,654 night flight =
calls was more than double the previous high for a week. The big push =
occurred the night of September 7-8 when 1,495 flight calls were =
recorded. Just how big a night this was relative to the rest of the fall =
migration is clearly illustrated in the graph on my website (<a =
href=3D"http://www.johnfkearney.com/nocturnal_monitoring/">http://www.joh=
nfkearney.com/nocturnal_monitoring/</a>). No flight calls were recorded =
the night of the big rain storm (September 10-11) but other than that =
one night, migration was steady at 100 to 330 calls per =
night.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p> =
</o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>The most =
common warblers were Common Yellowthroat, Northern Parula, Ovenbird, =
Magnolia Warbler, Black-throated Green Warbler, and American Redstart in =
that order (a graph for some warbler species can also be found on my =
website). The most common sparrows were Savannah Sparrow, =
Swamp/Lincoln’s Sparrow, and White-throated Sparrow. Counts on the =
ground would indicate that Lincoln’s Sparrow dominated by far =
those birds in the Swamp/Lincoln’s call complex. The most common =
thrush was Swainson’s Thrush.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p> =
</o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>Rare or =
unusual birds this week included Vesper Sparrow (total of 6 calls in 2 =
nights), Indigo Bunting (total of four calls in 3 nights), and Prairie =
Warbler (5 calls in one night).<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p> =
</o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>The =
summary of nocturnal migration over Doctor’s Brook, Antigonish =
Count