MIGRATION SUMMARY FROM AUGUST 8th - 14th, 2008

 

Pelee Island Bird Observatory (PIBO)

 

 

Although it was generally quiet at the Point this week, a small but steady number of migrants were recorded at the station on a daily basis including nine warbler species and a variety of flycatchers and shorebirds. Double-crested Cormorants were active, with 4500 birds recorded on census on August 12th, along with Ring-billed Gulls and Common Terns, with 560 and 400 individuals counted on the 9th, respectively.

 

Slightly cooler temperatures and light northwest winds from the 8th to 11th produced a variety of firsts for the autumn including Yellow-bellied Flycatcher, Swainson's Thrush, Blackburnian Warbler, Black-and-white Warbler and Northern Waterthrush.

 

Other early-Fall migrants included 5 Blue-grey Gnatcatchers on August 12th, Traill's and Least Flycatchers, a small but steady stream of Barn Swallows, and the following additional warbler species: Tennessee, Magnolia, American Redstart, Ovenbird and Canada Warbler.            

 

A total of 68 species was recorded at Fish Point this week during the official count period compared to 55 last week. Forty birds were banded along with one recapture in 295 net-hours, for an average catch-rate of .14 birds/net-hour.  

 

PIBO's next summary will be posted on August 23rd.

 

Northern Waterthrush photo - Claire Sanders    

 

Birds Documented at Fish Point by PIBO staff from August 8th - 14th, 2008

 

Date

August

8

9

10

11

12

13

14

 

 

 

 

 

 

 

 

 

Species

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Double-crested Cormorant

84

1.1K

8

586

4.5K

1.7K

1.7K

Great Blue Heron

 

1

 

 

3

1

 

Great Egret

 

 

 

 

 

1

 

 

Turkey Vulture

6

4

12

 

 

8

 

Canada Goose

 

25

 

 

 

 

 

Wood Duck

 

 

 

 

 

1

 

9

Bald Eagle

 

 

 

1

 

 

 

 

Red-tailed Hawk

 

 

 

 

 

 

1

Semipalmated Plover

 

 

2

1

 

 

1

Killdeer

 

8

6

4

5

4

5

9

Spotted Sandpiper

3

3

3

4

5

3

3

Sanderling

 

5

 

7

 

 

 

 

Semipalmated Sandpiper

 

 

 

 

 

2

 

Least Sandpiper

 

 

4

3

6

2

4

Bonaparte's Gull

61

18

80

27

38

2

1

Ring-billed Gull

65

560

300

80

17

11

420

Herring Gull

 

22

28

22

26

15

19

16

Great Black-backed Gull

 

 

 

 

 

5

7

Caspian Tern

 

1

 

 

 

 

1

Common Tern

280

8

400

210

300

400

70

Mourning Dove

3

3

1

 

2

5

4

Yellow-billed Cuckoo

2

1

 

1

4

1

2

Eastern Screech-Owl

1

 

 

 

2

 

1

Chimney Swift

 

1

 

 

 

 

 

Ruby-throated Hummingbird

 

 

 

 

 

 

1

Belted Kingfisher

 

1

 

 

1

1

 

Red-bellied Woodpecker

 

 

1

 

 

1

 

Downy Woodpecker

3

5

4

6

6

4

4

Northern Flicker

3

2

1

2

2

2

3

Eastern Wood-Pewee

3

6

3

3

3

2

4

Yellow-bellied Flycatcher

 

 

 

2

2

 

1

"Traill's" Flycatcher

 

 

 

1

 

 

 

Least Flycatcher

 

 

 

 

 

1

 

Great Crested Flycatcher

 

 

 

 

 

1

 

Eastern Kingbird

3

2

2

 

3

2

4

Red-eyed Vireo

1

1

1

 

1

1

1

Blue Jay

 

2

1

4

5

3

2

2

American Crow

2

4

2

2

 

 

 

Purple Martin

1

2

 

2

 

1

 

N. Rough-winged Swallow

 

 

 

 

 

1

 

Tree Swallow

 

2

 

 

 

 

 

Barn Swallow

7

4

7

10

8

13

9

Black-capped Chickadee

3

12

6

4

9

6

3

Carolina Wren

4

5

6

4

6

5

4

House Wren 

1

4

4

2

4

2

6

Blue-gray Gnatcatcher

 

 

 

 

5

1

 

American Robin

8

7

14

4

4

5

6

Wood Thrush

2

1

 

 

2

 

 

Swainson's Thrush

 

1

 

 

 

 

 

Gray Catbird 

 

1

 

 

 

 

 

Cedar Waxwing

5

7

7

2

2

1

9

Tennessee Warbler

 

 

 

 

1

 

 

Yellow Warbler

4

5

1

1

13

1

2

Magnolia Warbler

 

 

 

 

 

1

 

Blackburnian Warbler

 

 

 

1

 

 

 

Black-and-white Warbler

2

 

 

 

3

2

3

American Redstart

 

 

 

 

 

1

 

Ovenbird

 

 

 

 

 

1

 

 

Northern Waterthrush

 

2

 

1

2

 

5

Canada Warbler

 

 

 

1

 

 

 

Northern Cardinal

3

5

4

4

4

6

8

Rose-breasted Grosbeak

1

 

 

 

 

 

 

Indigo Bunting

2

1

 

1

1

1

1

Red-winged Blackbird

13

7

27

22

17

6

21

Common Grackle

22

7

9

11

51

15

 

Baltimore Oriole

3

2

2

2

9

5

5

 House Finch

 

 

 

 

 

1

 

American Goldfinch

1

3

1

2

5

 

6

 

 

 

 

 

 

 

 

 

SPECIES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Day

 

36

41

33

34

42

43

38

 

 

 

 

 

 

 

 

 

Fall 2008

 

58

63

63

67

71

75

77

 

 

 

 

 

 

 

 

 

This period

68

 

Previous period

 

55

 

 

 

 

 

 

 

 

 

August

 

8

9

10

11

12

13

14

 

 

 

 

 

 

 

 

 

Weather- 1 hr. after sunrise

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Wind direction/strength1

NW5

W5

NW6

NW4

E1

SW4

NE4

Visibility (km)

30

30

25

30

20

20

25

Cloud cover (0-10)

1

1

2

3

2

7

4

Temperature (o C)

19

20

15

16

16

20

19

Precipitation

 

 

 

 

 

 

 

 

1 Beaufort scale