MIGRATION SUMMARY FOR AUGUST 22nd - 28th, 2008

 

Pelee Island Bird Observatory (PIBO)

 

 

Migration activity picked up considerably at the Point this week with the arrival of the first significant waves of warblers along with a nice variety of other songbirds. Seventeen warbler species were tallied from the 22nd to 28th. Flycatchers continued to move through in moderate numbers and thrushes and vireos were active as well. Bird numbers peaked on August  25th when 55 species (including twelve warbler spp.) were recorded during the morning count period and 63 birds were banded of seventeen species.

 

Eight shorebird species were observed during the summary period and gulls and terns were numerous, with 800 Common Terns noted on the 26th. An Osprey on the 25th was the first this Fall, a small influx of Veerys was evident on the 26th, with seven birds tallied, and a whopping 9000 Double-crested Cormorants were counted on August 27th.      

 

Hot and humid conditions and southwest winds from August 22nd-24th made for a quiet time at the beginning of the week, but cool temperatures on the 25th produced lots of activity on the day including season ‘firsts’ for Veery and Nashville Warbler.

 

Warblers dominated this week in the netting area, with 177 banded of fifteen species (75% of all banded birds) – including a young male Brewster’s Warbler (Aug. 27th). Redstarts and Magnolias led the way, with 39 and 37 banded respectively, but a variety of additional species appeared in fair numbers as well including 9 Black-throated Blue Warblers captured on the 27th. The second Eastern Screech-Owl of the Fall and a Yellow-billed Cuckoo were also banded along with small numbers of flycatchers, vireos and others.

 

A total of 83 species was recorded at the Point this week during the official count period compared to 75 last week and eight Fall ‘firsts’ were noted, which brings the Fall species total to 92. In all, 235 birds were banded along with five recaptures in 372 net-hours, for an average catch-rate of .65 birds/net-hour.  

 

Black-throated Green Warbler photo – Sumiko Onishi

 

PIBO’s next summary will be posted on September 6th.      

 

 

Birds Documented at Fish Point by PIBO staff from August 22nd – 28th, 2008

 

Date

August

22

23

24

25

26

27

28

 

 

 

 

 

 

 

 

 

Species

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Double-crested Cormorant

1.5K

917

180

1.1K

270

9K

510

Great Blue Heron

2

 

2

3

 

1

 

Turkey Vulture

1

1

 

 

 

 

 

Canada Goose

2

7

11

16

17

49

2

Wood Duck

 

 

3

 

 

7

3

3

American Black Duck

 

 

 

 

 

 

1

Mallard

 

 

 

1

3

2

 

6

Red-breasted Merganser

 

 

 

 

 

1

 

Osprey

 

 

 

 

1

 

 

 

Bald Eagle

 

 

 

3

1

 

1

1

Red-tailed Hawk

1

 

 

 

 

 

 

Black-bellied Plover

1

 

 

 

 

 

 

Semipalmated Plover

 

 

 

 

1

 

 

Killdeer

 

5

4

5

4

4

4

3

Spotted Sandpiper

5

1

2

4

1

2

3

Ruddy Turnstone

2

 

 

 

 

 

2

Sanderling

 

 

1

1

8

 

3

 

Semipalmated Sandpiper

 

 

 

1

 

1

 

American Woodcock

 

1

 

 

 

 

 

Bonaparte's Gull

7

31

63

5

35

76

2

Ring-billed Gull

40

12

37

37

50

78

50

Herring Gull

 

30

14

33

22

15

29

35

Great Black-backed Gull

21

45

50

30

 

50

40

Common Tern

600

800

700

700

800

450

100

Mourning Dove

5

8

3

 

3

1

8

Yellow-billed Cuckoo

2

2

2

1

 

1

 

Black-billed Cuckoo

1

 

2

 

 

 

 

Eastern Screech-Owl

 

1

 

 

2

 

 

Chimney Swift

1

 

 

 

4

 

 

Belted Kingfisher

 

 

 

 

1

 

 

Red-bellied Woodpecker

 

 

 

1

 

 

 

Downy Woodpecker

3

3

4

1

1

1

2

Northern Flicker

 

1

1

2

 

 

 

Eastern Wood-Pewee

3

3

3

5

3

4

2

Yellow-bellied Flycatcher

1

4

2

5

5

4

1

"Traill's" Flycatcher

 

 

 

1

 

 

 

Least Flycatcher

1

1

3

4

3

2

1

Great Crested Flycatcher

1

1

1

 

 

 

1

Eastern Kingbird

4

2

7

1

2

2

 

Red-eyed Vireo

2

2

2

7

4

3

3

Blue Jay

 

3

2

2

3

 

1

1

American Crow

2

4

1

2

 

3

2

Purple Martin

7

4

10

 

 

 

 

N. Rough-winged Swallow

 

3

 

 

1

 

 

Bank Swallow

 

5

 

 

 

 

 

Barn Swallow

11

11

8

9

8

2

7

Black-capped Chickadee

6

12

 

4

7

4

5

Carolina Wren

5

2

5

4

2

2

3

House Wren

 

1

2

2

2

 

2

1

Blue-gray Gnatcatcher

1

 

2

4

1

 

1

American Robin

4

2

4

3

1

2

 

Wood Thrush

 

 

1

 

 

 

 

Veery

 

 

 

 

3

7

3

1

Swainson's Thrush

 

 

 

 

1

1

 

Gray Catbird

 

 

 

1

 

 

 

 

European Starling

2

 

 

 

 

 

 

Cedar Waxwing

28

20

27

27

21

4

5

Brewster's Warbler

 

 

 

 

 

1

 

Tennessee Warbler

1

 

2

6

 

3

2

Nashville Warbler

 

 

 

2

 

1

 

Chestnut-sided Warbler

9

 

 

7

3

1

 

Magnolia Warbler

13

3

3

13

12

15

3

Cape May Warbler

 

 

 

 

 

1

 

Black-throated Blue Warbler

2

1

2

1

3

10

4

Blackburnian Warbler

3

 

 

 

 

 

 

Black-thr. Green Warbler

1

 

 

2

 

 

 

Black-and-white Warbler

2

 

2

3

2

4

2

American Redstart

6

 

2

17

20

14

5

Ovenbird

 

2

1

 

4

1

3

2

Northern Waterthrush

2

5

3

5

4

7

4

Mourning Warbler

1

 

 

3

 

1

 

Common Yellowthroat

1

 

 

 

 

 

 

Wilson's Warbler

 

 

 

1

 

 

2

Canada Warbler

1

2

 

5

1

 

3

Northern Cardinal

4

7

2

5

4

3

2

Indigo Bunting

 

 

 

 

 

1

 

Bobolink

 

 

 

2

5

3

 

 

Red-winged Blackbird

43

27

28

21

18

48

40

Common Grackle

5

 

60

26

18

1

1

Baltimore Oriole

5

6

8

3

4

2

1

Orchard Oriole

 

1

 

 

 

 

 

House Finch

 

 

 

 

1

 

 

 

American Goldfinch

2

6

3

5

3

2

2

 

 

 

 

 

 

 

 

 

SPECIES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Day

 

54

45

47

55

44

51

44

 

 

 

 

 

 

 

 

 

Fall 2008

 

87

87

87

90

90

91

92

 

 

 

 

 

 

 

 

 

This period

83

 

Previous period

 

75

 

 

 

 

 

 

 

 

 

August

 

22

23

24

25

26

27

28

 

 

 

 

 

 

 

 

 

Weather- 1 hr. after sunrise

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Wind direction/strength1

S4

SW4

WSW4

NE4

ESE5

ESE4

SSW3

Visibility (km)

8

30

20

30

30

30

25

Cloud cover (0-10)

6

9

3

5

6

3

10

Temperature (o C)

24

23

24

18

19

20

19

Precipitation

 

 

 

 

 

 

 

RAIN

1 Beaufort scale