MIGRATION SUMMARY – NOVEMBER 7th TO 15th, 2007

 

 

Pelee Island Bird Observatory (PIBO)

  

 

After another productive and enjoyable year of field coverage, PIBO’s Fall 2007 migration monitoring season came to a close on November 15th. Songbird activity at Fish Point was down considerably compared to previous years, but the season was a tremendous success and there were many exciting new developments at the observatory during this, our 5th year of operations.  

 

Ten staff and volunteers completed 107 consecutive days of coverage at the Point from August 1st to November 15th and compiled 1816 field-hours. In all, 2035 birds of seventy-four species were banded and sixty birds recaptured during 4488 net-hours of operation. Of the recaptures, twenty-eight were passage migrants banded this season by PIBO at least one day before their recapture, twenty-nine were presumed local birds (including 25 Black-capped Chickadees), and three were Northern Saw-whet Owl foreign encounters (birds banded at another location).

 

While the total number of net hours this Fall was the highest at the station to-date, the number of birds banded was the lowest since operations began in 2003. The Fall catch-rate was .45 birds/net-hour compared to the last three-year average of 1.14 – a decline of 63%. A total of 178 species was recorded at the Point during the official coverage period.

 

PIBO’s Northern Saw-whet Owl monitoring pilot-study got a late start on October 17th, yet fifty-one saw-whets and one Eastern Screech Owl were captured during eighteen nights of operation to November 13th. While further details are pending, one of the three foreign encounters was originally banded in Wisconsin in 2003.    

 

It was quiet in the netting area during the final nine days of coverage but there were lots of diurnal migrants recorded flying over the station and waterfowl on the lake. Highlights during the first half of the summary period included good numbers of Horned Grebes and Buffleheads (November 7th), a Golden Eagle (8th), and 1000 Red-breasted Mergansers and a late Nashville Warbler (10th). A Cave Swallow – a first for Pelee Island – and a Cattle Egret were documented by PIBO staff outside the count area on November 7th and 10th, respectively.           

 

South winds set-in on the 11th which made for a generally quiet time until the 13th, when large numbers of birds were recorded including the first Rough-legged Hawk of the Fall, moderate numbers of American Pipits, 110 Snow Buntings, and more than 5000 Red-winged Blackbirds and Common Grackles. Strong west winds and steady rain on the final two days of the season produced a nice variety of waterfowl on the lake, a Golden Eagle, and small numbers of late-autumn songbirds including Red and White-breasted Nuthatch, both kinglet spp., American Robin, Cedar Waxwing, American Tree Sparrow and Pine Siskin.        

 

Sixty-six species were recorded at the Point from November 7th-15th compared to sixty-five species during the previous week and three Fall ‘firsts’ were tallied, which brings the final season species count to 178. In all, 30 birds were banded (not including nine owls) and eight recaptured during 196 net-hours for a catch-rate of .15 birds/net-hour.

 

This year’s Final Report will be completed shortly and will include a summary of the spring and fall migration seasons, details of PIBO’s breeding bird studies on Pelee, and an update of all the exciting new developments in 2007.

 

A heart-felt thanks to all of PIBO’s funders, friends and supporters who contributed their time and effort in helping to make the 2007 migration season a great success, including the following wonderful group of field interns and volunteers – Rhonda Donley, Robert Haupt, Kerry McGuire, Sumiko Onishi, Adam Pinch, Claire Sanders, Kirk Stewart, and Jim & Pat Woodford.        

 

Eastern Bluebird photo – PIBO

 

Next year’s first Spring summary will be posted on April 8th.

 

 

Birds Documented at Fish Point  November 7th – 15th, 2007 

 

    

Date

November

7

8

9

10

11

12

13

14

15

 

 

 

 

 

 

 

 

 

 

 

Species

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Common Loon

 

 

 

1

 

 

 

 

 

Horned Grebe

16

 

 

7

 

7

19

1

 

Double-crested Cormorant

4

 

 

47

4

 

12

 

 

Tundra Swan

 

 

 

5

 

 

3

1

 

Canada Goose

2

96

98

100

100

60

94

51

 

Mallard

 

 

 

2

9

8

9

 

 

3

Scaup spp.

 

6

 

 

15

 

 

30

16

Bufflehead

82

27

47

28

74

49

90

106

70

Common Goldeneye

4

7

20

 

7

2

 

8

8

Red-breasted Merganser

910

57

397

1.1K

51

110

40

25

235

Ruddy Duck

 

 

 

 

2

13

 

8

6

Bald Eagle

 

 

 

1

 

 

 

 

2

Northern Harrier

 

1

 

1

1

 

1

 

 

Sharp-shinned Hawk

1

 

 

1

 

 

1

2

1

Golden Eagle

 

1

 

 

 

 

 

 

1

Cooper's Hawk

 

 

 

2

 

 

 

 

 

Red-tailed Hawk

 

 

 

3

1

 

1

1

1

Red-shouldered Hawk

1

 

 

 

 

 

1

1

 

Rough-legged Hawk

 

 

 

 

 

 

1

 

 

Merlin

 

 

 

 

 

1

 

 

 

 

Ring-necked Pheasant

4

4

5

5

 

 

6

 

 

Wild Turkey

 

12

 

15

 

 

2

 

25

Killdeer

 

 

 

1

 

1

 

1

 

1

Bonaparte's Gull

21

19

8

2

12

10

32

100

20

Ring-billed Gull

8

38

16

2

8

15

6

2

8

Herring Gull

13

8

7

9

20

6

3

8

6

Great Black-backed Gull

2

 

7

 

25

8

3

1

4

Mourning Dove

 

 

 

1

 

 

 

 

 

Northern Saw-whet Owl

6

 

 

2

 

 

1

 

 

Red-bellied Woodpecker

2

1

1

3

2

2

3

2

2

Downy Woodpecker

1

 

3

3

1

 

6

1

4

Northern Flicker

 

2

2

1

 

6

5

 

 

Eastern Phoebe

1

 

 

 

 

 

 

 

 

American Crow

7

9

6

160

 

 

22

 

3

Horned Lark

1

 

 

2

 

 

1

2

19

Black-capped Chickadee

7

7

7

5

2

6

9

2

8

Red-breasted Nuthatch

 

 

1

 

 

 

 

 

1

White-breasted Nuthatch

 

 

2

 

 

1

 

 

2

Brown Creeper

1

 

1

2

 

1

3

1

 

Carolina Wren

 

 

2

 

1

 

2

1

 

Winter Wren

1

 

2

1

 

 

 

 

 

Golden-crowned Kinglet

6

9

17

11

4

8

14

6

3

Ruby-crowned Kinglet

5

4

 

4

 

1

2

1

1

Eastern Bluebird

 

 

 

 

 

 

1

 

 

American Robin

1

 

 

 

 

13

 

20

41

Hermit Thrush

1

 

 

 

 

 

2

 

 

European Starling

 

204

87

72

65

428

340

113

400

American Pipit

 

 

1

16

2

3

37

14

8

Cedar Waxwing

 

 

 

 

 

 

10

 

35

Nashville Warbler

 

 

 

1

 

 

 

 

 

Yellow-rumped Warbler

 

 

1

 

 

1

5

 

3

Northern Cardinal

 

3

2

4

2

2

2

3

4

Eastern Towhee

 

 

 

 

 

 

1

1

 

American Tree Sparrow

 

 

1

11

7

2

18

4

1

White-throated Sparrow

2

4

 

4

1

 

4

6

4

Song Sparrow

 

 

1

 

 

2

1

2

1

Swamp Sparrow

 

 

1

 

 

 

 

 

 

Dark-eyed Junco

 

 

1

2

9

18

 

 

2

Snow Bunting

1

1

 

6

 

 

110

 

 

Brown-headed Cowbird

 

 

 

 

 

 

8

 

 

Red-winged Blackbird

50

77

54

53

9

200

3.9K

73

290

Rusty Blackbird

 

 

 

 

 

 

23

5

2

Common Grackle

90

8

10

33

 

6

1.1K

3

8

Purple Finch

 

 

 

1

 

 

 

 

 

Pine Siskin

 

 

 

 

3

 

1

 

2

American Goldfinch

12

1

11

22

3

33

57

8

66

 

 

 

 

 

 

 

 

 

 

 

SPECIES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Day

 

30

25

33

41

30

29

46

35

40

 

 

 

 

 

 

 

 

 

 

 

Fall 2007

 

176

177

177

177

177

177

178

178

178

 

 

 

 

 

 

 

 

 

 

 

This period

66

 

Previous period

 

 

65

 

 

 

 

 

 

 

 

 

 

 

November

7

8

9

10

11

12

13

14

15

 

 

 

 

 

 

 

 

 

 

 

Weather - 1 hr after sunrise

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Wind direction/strength1

NW5

SW3

SW2

N1

S4

SW3

E2

W4

W5

Visibility (km)

25

20

25

15

15

10

25

8

20

Cloud cover (0-10)

10

9

10

1

10

10

2

8

10

Temperature o C)

4

4

7

5

4

5

7

8

5

Precipitation

SNOW

 

 

 

 

RAIN

 

RAIN

RAIN

1 Beaufort scale