MIGRATION SUMMARY – SEPTEMBER 5th – 11th, 2007

 

Pelee Island Bird Observatory (PIBO)

 

A mixture of rain, warm temperatures and southerly winds made for a quiet time at the Point this week. There were few migrants about with the exception of Swainson’s Thrushes and small numbers of vireos and warblers. Seventy-one species were tallied during the summary period, for instance, compared to ninety species during the same period last Fall – just twelve warbler spp. were recorded verses twenty-two in 2006.        

 

September 5th   

 

South winds, 22° C at dawn, and not much activity apart from a group of Sanderlings at the Tip and a few Swainson’s Thrushes in the netting area. Most of the local breeding birds have departed and there was not much to take their place – just twenty-nine species were recorded in the count area.

 

September 6th  

 

Similar conditions to the preceding day with even less activity – nine birds captured during sixty net-hours of operation and only twenty-seven species noted on the day.  

 

September 7th    

 

Strong southwest winds this-morning with little bird news to report.

 

September 8th    

 

Another warm, quiet morning with very little activity – a ‘Western’ Palm Warbler observed on census was new for the Fall along with ‘firsts’ for Northern Pintail and American Kestrel. While there were no birds for the banding demonstration, a jolly group of forty visitors enjoyed bbq’d Mennonite sausages and a visit to the netting area as part of the Pelee Island Heritage Weekend event. Many thanks to everyone who helped make the day a big success, even without the birds!   

 

September 9th   

 

Lots of rain this-morning and not much to report apart from 3000 Double-crested Cormorants counted on census along with small numbers of four raptor species.  

 

September 10th

 

It was more active today, with forty-five species recorded and sixty-three birds banded during the morning count period – thrushes accounted for two-thirds of the banded birds. At the same time, the quiet pace this Fall continues when compared to previous coverage seasons – last year, for instance, sixty-four species were tallied on September 10th, including nineteen warbler spp., compared to forty-five species and eight warbler spp. noted this September.    

 

September 11th   

 

It was raining this-morning and there were just a few thrushes and warblers in the area. The wind picked-up in the afternoon and was very strong from the northwest by dusk. Twenty birds of four species were captured during sixty net-hours of operation.    

 

Seventy-one species were recorded at the Point this week compared to ninety last week and three Fall ‘firsts’ were tallied, which brings the season species count to 120. In all, 109 birds were banded and three recaptured during 187 net-hours for a catch-rate of .58 birds/net-hour.

 

Tennessee Warbler photo – Christopher Dunn

 

Next week’s summary will be posted on September 20th.

 

Birds Documented at Fish Point   September 5th – 11th, 2007 

    

Date

September

5

6

7

8

9

10

11

 

 

 

 

 

 

 

 

 

Species

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Double-crested Cormorant

70

127

250

4.8K

3K

6K

3.2K

Turkey Vulture

 

3

4

 

 

 

 

Canada Goose

19

29

61

3

19

14

18

Mallard

 

 

 

 

7

1

 

 

Northern Pintail

 

 

 

3

 

 

 

Osprey

 

 

 

 

1

1

 

 

Bald Eagle

 

 

 

 

2

 

 

Northern Harrier

 

 

 

 

 

1

 

Sharp-shinned Hawk

 

 

1

4

1

6

1

American Kestrel

 

 

 

1

1

 

 

Merlin

 

 

 

 

1

 

 

 

Wild Turkey

 

 

 

 

 

9

 

Semipalmated Plover

 

 

 

 

 

 

3

Killdeer

 

 

 

 

 

 

1

 

Spotted Sandpiper

4

 

2

 

2

2

 

Sanderling

33

 

2

 

2

 

4

Baird's Sandpiper

4

 

 

 

 

 

1

Semipalmated Sandpiper

 

 

 

 

 

 

1

Least Sandpiper

1

 

 

 

 

 

 

Ring-billed Gull

9

40

120

500

250

200

140

Herring Gull

14

45

45

12

35

30

10

Great Black-backed Gull

22

20

35

40

35

30

24

Common Tern

 

 

 

 

1

1

 

Mourning Dove

3

2

1

 

3

2

3

Great Horned Owl

1

 

 

 

 

 

 

Ruby-throated Hummingbird

 

 

 

3

 

2

Downy Woodpecker

 

 

1

 

 

1

1

Yellow-shafted Flicker

1

 

 

 

 

1

1

Eastern Wood-Pewee

3

3

1

1

1

 

2

Yellow-bellied Flycatcher

1

1

 

 

 

 

 

Great Crested Flycatcher

 

 

 

 

 

1

 

Eastern Kingbird

 

 

 

 

1

 

 

Red-eyed Vireo

 

1

 

 

 

4

 

Philadelphia Vireo

 

 

 

 

 

3

 

Blue Jay

 

6

3

 

 

 

7

3

American Crow

1

 

3

 

 

3

2

Purple Martin

 

1

 

4

 

 

 

N. Rough-winged Swallow

 

5

 

 

 

 

 

Bank Swallow

 

 

 

1

1

 

 

Barn Swallow

5

5

 

 

2

18

 

Black-capped Chickadee

4

5

1

3

3

5

3

Red-breasted Nuthatch

3

 

 

 

 

4

2

Carolina Wren

 

 

 

 

2

1

2

House Wren

 

 

 

 

 

1

 

American Robin

1

1

 

 

 

1

 

Wood Thrush

 

 

 

 

 

1

 

Veery

 

2

 

 

 

 

3

1

Swainson's Thrush

16

7

 

3

 

44

22

Gray-cheeked Thrush

 

 

 

 

 

6

2

Gray Catbird

 

 

 

 

 

1

 

European Starling

 

1

2

 

 

 

 

Cedar Waxwing

1

2

4

4

35

11

1

Magnolia Warbler

 

 

1

 

2

5

 

Black-throated Blue Warbler

 

 

 

1

 

1

2

Black-thr. Green Warbler

 

 

 

 

 

3

1

Western Palm Warbler

 

 

 

1

 

 

 

Bay-breasted Warbler

 

 

 

1

 

 

 

Blackpoll Warbler

 

 

 

4

5

6

 

American Redstart

1

 

 

1

2

1

 

Ovenbird

 

1

1

 

 

1

3

3

Northern Waterthrush

2

1

 

 

 

 

 

Mourning Warbler

 

 

 

 

 

 

1

Common Yellowthroat

 

 

 

 

3

2

1

Wilson's Warbler

 

 

 

1

1

1

1

Northern Cardinal

1

1

3

3

2

2

1

Rose-breasted Grosbeak

 

 

 

1

 

2

 

Indigo Bunting

3

1

2

 

1

1

3

Red-winged Blackbird

 

 

 

11

 

13

 

Common Grackle

 

2

 

24

 

28

 

House Finch

 

8

 

1

1

 

 

American Goldfinch

3

4

2

6

4

9

1

 

 

 

 

 

 

 

 

 

SPECIES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Day

 

29

27

21

29

32

45

33

 

 

 

 

 

 

 

 

 

Fall 2007

 

117

117

120

120

120

120

120

 

 

 

 

 

 

 

 

 

This period

71

 

Previous period

90

 

 

 

 

 

 

 

 

 

September

5

6

7

8

9

10

11

 

 

 

 

 

 

 

 

 

Weather - 1 hr after sunrise

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Wind direction/strength1

SW2

SW4

SSW6

NE4

SE2

NE2

NW3

Visibility (km)

15

25

10

25

20

30

25

Cloud cover (0-10)

0

0

0

9

10

9

10

Temperature o C)

22

22

21

22

20

18

18

Precipitation

 

 

 

 

RAIN

 

RAIN

1 Beaufort scale