MIGRATION SUMMARY – AUGUST 8th TO 14th, 2007

 

Pelee Island Bird Observatory (PIBO)

 

Lots of warm weather and variable light winds made for a generally quiet time at the Point this week and migrants were fairly scarce throughout the summary period. At the same time, a nice variety of birds arrived in small numbers from the 8th-14th and species diversity picked up noticeably.

 

Cormorants, gulls and terns were active on the lake – a Lesser Black-backed Gull was observed on August 8th – and eight shorebird species were tallied. A Broad-winged Hawk and Whimbrel were documented on August 8th and 11th respectively, the latter being an unusual autumn record.

 

Songbird migration this week included ones-and-twos of Least and Yellow-bellied Flycatcher, increased numbers of Barn Swallows, a few Swainson’s Thrushes and eight warbler species. Tennessee, Chestnuts-sided, Blackburnian, Black-and-white, Canada, and American Redstart were new for the Fall.

 

It was cooler on the morning of August 11th and there were more birds about, with fifty-one species tallied during the count period. While it remained fairly quiet the next day, an Eastern Screech Owl captured before dawn was a treat and just the third individual of this species banded at the station. Isolated thunderstorms and southerly winds produced little activity during the final two days of the summary period.

 

Seventy-three species were recorded a the Point this week compared to sixty last week and twenty Fall ‘firsts’ were tallied, which brings the season species count to eighty. Twenty-two birds were captured during 241 net-hours for an average catch-rate of .09 birds/net-hour.     

 

American Redstart photo – Kerry McGuire

 

Next week’s summary will be posted on August 23rd.

  

Birds Documented at Fish Point                        August 8th-14th, 2007 

    

Date

August

8

9

10

11

12

13

14

 

 

 

 

 

 

 

 

 

Species

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Double-crested Cormorant

550

550

580

4K

130

3K

300

Great Blue Heron

4

3

 

1

1

2

2

Green Heron

1

 

 

 

 

 

 

Great Egret

1

 

 

1

1

 

 

Turkey Vulture

 

 

 

1

 

2

 

Canada Goose

26

10

 

 

 

 

 

Wood Duck

1

 

 

 

 

 

 

Mallard

 

 

5

 

 

1

 

 

Osprey

 

 

 

1

 

 

 

 

Bald Eagle

 

 

 

2

 

 

1

Ring-necked Pheasant

 

 

1

1

 

 

 

Semipalmated Plover

 

 

 

1

 

1

 

Killdeer

 

1

1

 

3

 

1

1

Lesser Yellowlegs

 

 

2

 

 

 

 

Spotted Sandpiper

6

7

4

5

4

3

1

Ruddy Turnstone

 

1

 

 

 

 

1

Sanderling

 

3

2

 

 

 

 

Least Sandpiper

 

 

 

 

1

1

 

American Woodcock

2

 

 

1

1

 

 

Bonaparte's Gull

60

40

65

45

2

47

4

Ring-billed Gull

500

600

400

400

400

400

90

Herring Gull

60

40

30

40

45

50

13

Great Black-backed Gull

8

1

14

8

7

 

12

Caspian Tern

 

 

1

 

1

1

 

Common Tern

450

70

400

250

280

200

80

Mourning Dove

5

5

8

10

9

4

7

Black-billed Cuckoo

 

 

1

 

 

 

 

Yellow-billed Cuckoo

1

2

1

4

1

 

1

Eastern Screech-Owl

 

 

 

 

1

 

 

Chimney Swift

 

 

 

 

1

 

 

Red-bellied Woodpecker

3

1

1

2

1

 

 

Downy Woodpecker

4

4

6

6

1

2

5

Yellow-shafted Flicker

3

4

3

3

3

1

1

Eastern Wood-Pewee

5

6

5

4

3

 

3

Yellow-bellied Flycatcher

 

 

 

1

 

1

 

Least Flycatcher

2

2

2

2

3

 

 

Great Crested Flycatcher

1

2

1

1

2

 

1

Eastern Kingbird

6

5

6

6

2

2

5

Red-eyed Vireo

2

1

2

2

3

1

1

Warbling Vireo

 

 

1

 

 

 

 

Blue Jay

 

4

1

3

6

3

1

3

American Crow

1

2

3

3

 

4

4

Purple Martin

3

3

6

3

4

3

2

N. Rough-winged Swallow

1

 

1

 

2

 

 

Bank Swallow

 

 

 

 

6

 

 

Tree Swallow

 

 

 

 

2

 

 

Barn Swallow

8

12

14

11

23

18

23

Black-capped Chickadee

7

7

7

6

2

2

2

Red-breasted Nuthatch

2

 

1

2

1

1

 

Carolina Wren

4

3

2

3

2

2

4

House Wren

4

2

2

4

2

 

1

Blue-gray Gnatcatcher

1

 

 

 

 

 

 

American Robin

3

2

3

6

4

 

2

Swainson's Thrush

1

 

 

1

 

 

 

Gray Catbird

 

 

 

1

 

 

 

European Starling

3

 

2

2

 

 

3

Cedar Waxwing

11

26

12

24

6

2

12

Tennessee Warbler

 

 

 

 

 

1

 

Yellow Warbler

8

1

4

6

 

 

 

Chestnut-sided Warbler

 

 

 

 

 

1

 

Blackburnian Warbler

 

 

 

2

 

1

 

Black-and-white Warbler

 

 

 

1

 

 

1

American Redstart

 

 

 

 

1

 

 

Northern Waterthrush

 

 

 

 

 

 

1

Canada Warbler

 

 

 

2

 

 

 

Northern Cardinal

8

3

5

6

6

4

6

Indigo Bunting

3

3

3

3

2

1

2

Eastern Towhee

 

 

 

1

 

 

 

Red-winged Blackbird

32

42

80

48

30

12

21

Common Grackle

22

13

28

22

15

3

39

Baltimore Oriole

4

4

5

6

6

2

6

House Finch

 

1

 

2

 

 

 

American Goldfinch

6

5

8

8

1

2

6

 

 

 

 

 

 

 

 

 

SPECIES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Day

 

45

40

43

51

44

35

38

 

 

 

 

 

 

 

 

 

Fall 2007

 

65

66

69

74

78

80

80

 

 

 

 

 

 

 

 

 

This period

73

 

Previous period

60

 

 

 

 

 

 

 

 

 

August

 

8

9

10

11

12

13

14

 

 

 

 

 

 

 

 

 

Weather - 1 hr after sunrise

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Wind direction/strength1

W2

SE3

NE1

ENE2

SWS3

NE2

SW2

Visibility (km)

15

15

25

30

30

30

30

Cloud cover (0-10)

6

9

10

2

9

1

10

Temperature o C)

26

24

22

18

22

20

18

Precipitation

 

 

 

 

 

 

 

1 Beaufort     

  scale