MIGRATION SUMMARY – SEPTEMBER 19th – 25th, 2007

 

Pelee Island Bird Observatory (PIBO)

 

There were lots of new arrivals this week and migrants were reasonably active despite average dawn temperatures of 19° C and just one day of north winds. Ten Fall ‘firsts’ were recorded on the 20th including Golden-crowned Kinglet, Winter Wren, Hermit Thrush, Yellow-rumped Warbler and Dark-eyed Junco. Seven raptor species were tallied this week and sparrows were a little more active as well. Overall, migration was generally slow-but-steady during the summary period.       

 

September 19th    

 

Warm weather, southwest winds and very few migrants in the area – thirty species tallied on the day and seven birds captured during thirty-five net-hours (.20 birds/net-hour).  

 

September 20th  

 

A considerable increase in activity with fifty species recorded during the morning count period and forty-six birds banded of thirteen species. Many new Fall ‘firsts’ and a season-high to-date of 415 Blue Jays. Eleven warbler species noted including the first Northern Parula of the Fall.  

 

September 21st     

 

Not as many birds this-morning but a nice variety including four raptor, five thrush and seven warbler spp. The first American Pipit of the Fall was noted on the census.     

 

September 22nd     

 

A similar day to the 21st although quiet for the most-part with the exception of small numbers of Sharp-shinned Hawks (3 banded), a banded Yellow-bellied Flycatcher, and Fall-firsts for Lesser Scaup, Peregrine Falcon and Greater Yellowlegs.     

 

September 23rd    

 

Migrants were active this-morning with fifty species recorded and thirty-seven birds banded of thirteen species (.62 birds/net-hour). Blue Jays and Gray-cheeked Thrushes were numerous along with ones-and-twos of eight warbler spp. New arrivals for the Fall included Yellow-bellied Sapsucker, Blue-headed Vireo and Brown Creeper.   

 

September 24th

 

There were fewer birds in the area today with forty-four species counted and twenty birds banded – thrushes made up most of the captures along with four warbler spp.  

 

September 25th   

 

It was 22° C before dawn which, along with warm southwest winds, made for a quiet morning. Migrants were few-and-far between apart from some Chimney Swifts, Blue Jays, Swainson’s and Gray-cheeked Thrushes.    

 

Eighty-six species were recorded at the Point this week compared to seventy-six last week and twenty Fall ‘firsts’ were tallied, which brings the season species count to 144. In all, 186 birds were banded and two recaptured during 360 net-hours for a catch-rate of .52 birds/net-hour.

 

Sharp-shinned Hawk photo – Claire Sanders

 

Next week’s summary will be posted on October 4th.  

 

Birds Documented at Fish Point   September 19th – 25th, 2007 

    

Date

September

19

20

21

22

23

24

25

 

 

 

 

 

 

 

 

 

Species

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Double-crested Cormorant

40

27

43

 

2K

4.2K

26

Great Blue Heron

1

1

 

 

1

 

 

Canada Goose

 

8

 

18

14

36

29

Lesser Scaup

 

 

 

2

 

 

 

Redhead

 

 

 

 

 

 

4

 

Osprey

 

 

 

 

 

 

1

 

Bald Eagle

 

 

 

1

 

 

1

Northern Harrier

 

1

1

 

1

1

 

Sharp-shinned Hawk

5

13

12

10

12

5

5

American Kestrel

1

2

1

 

1

 

 

Merlin

 

 

1

2

1

1

1

1

Peregrine Falcon

 

 

 

1

 

 

 

Wild Turkey

11

 

 

 

 

 

 

Killdeer

 

 

 

 

 

 

 

3

Greater Yellowlegs

 

 

 

1

 

 

 

Solitary Sandpiper

 

 

 

 

1

1

 

Spotted Sandpiper

1

 

 

 

 

 

 

Ring-billed Gull

32

20

8

22

42

42

60

Herring Gull

29

24

6

40

35

5

35

Great Black-backed Gull

50

40

1

40

30

25

20

Mourning Dove

 

1

 

 

1

1

 

Great Horned Owl

 

1

1

 

1

1

 

Chimney Swift

 

 

 

 

 

 

5

Ruby-throated Hummingbird

 

 

 

1

 

 

Belted Kingfisher

 

 

 

 

 

1

2

Red-headed Woodpecker

1

 

 

 

 

 

 

Red-bellied Woodpecker

 

 

1

 

 

 

 

Downy Woodpecker

2

4

3

1

3

2

1

Yellow-bellied Sapsucker

 

 

 

 

1

1

 

Yellow-shafted Flicker

4

15

5

 

3

6

2

Eastern Wood-Pewee

 

1

 

 

 

 

 

Yellow-bellied Flycatcher

 

1

 

1

 

 

 

Red-eyed Vireo

1

 

1

 

 

 

 

Blue-headed Vireo

 

 

 

 

1

 

 

Blue Jay

 

45

415

141

96

116

71

132

American Crow

3

7

4

3

1

2

1

Horned Lark

 

 

 

 

 

1

 

N. Rough-winged Swallow

3

 

 

 

 

 

 

Barn Swallow

11

 

 

 

 

 

 

Black-capped Chickadee

2

1

5

1

2

2

3

Red-breasted Nuthatch

4

10

5

2

6

5

3

White-breasted Nuthatch

 

1

 

 

 

1

1

Brown Creeper

 

 

 

 

1

1

 

Carolina Wren

 

1

 

 

1

 

 

House Wren

 

 

1

 

1

 

 

Winter Wren

 

2

 

2

1

 

 

Golden-crowned Kinglet

 

1

 

 

 

 

 

Ruby-crowned Kinglet

 

2

2

 

1

1

1

American Robin

 

 

2

 

2

2

1

Wood Thrush

1

 

3

2

 

1

 

Veery

 

1

 

 

 

 

 

 

Swainson's Thrush

2

14

12

10

13

9

5

Gray-cheeked Thrush

 

11

2

3

13

7

8

Hermit Thrush

 

2

1

 

1

 

1

Gray Catbird

 

1

2

2

 

 

 

Brown Thrasher

 

 

1

 

1

1

 

European Starling

9

33

14

 

2

49

 

American Pipit

 

 

1

 

 

3

 

Cedar Waxwing

4

3

 

2

2

2

 

Northern Parula

 

1

 

 

 

 

 

Nashville Warbler

1

 

 

1

1

1

 

Magnolia Warbler

 

7

6

 

3

1

 

Black-throated Blue Warbler

 

5

4

2

2

 

2

Yellow-rumped Warbler

 

 

 

 

3

6

 

Black-thr. Green Warbler

 

 

1

1

 

 

 

Western Palm Warbler

 

2

 

 

1

 

1

Bay-breasted Warbler

 

1

 

 

 

 

 

Blackpoll Warbler

1

1

2

 

 

 

 

Black-and-white Warbler

 

2

 

 

 

 

 

American Redstart

 

5

2

2

2

 

 

Ovenbird

 

 

5

1

1

2

2

3

Northern Waterthrush

 

 

1

 

1

 

 

Common Yellowthroat

 

1

 

 

 

 

 

Wilson's Warbler

 

 

 

 

 

1

 

Northern Cardinal

2

2

 

1

2

2

 

Rose-breasted Grosbeak

 

 

 

 

 

2

 

Savannah Sparrow

 

 

 

 

1

 

 

White-throated Sparrow

 

3

1

 

2

6

 

Lincoln's Sparrow

 

 

 

 

1

 

 

Swamp Sparrow

 

1

 

 

 

 

 

Dark-eyed Junco

 

4

 

 

3

 

 

Red-winged Blackbird

43

59

9

 

23

10

 

Common Grackle

17

10

 

 

6

 

 

Purple Finch

 

1

 

 

 

 

 

House Finch

 

 

1

 

 

1

 

American Goldfinch

14

26

10

2

14

7

3

 

 

 

 

 

 

 

 

 

SPECIES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Day

 

30

50

39

29

50

44

27

 

 

 

 

 

 

 

 

 

Fall 2007

 

124

134

135

138

142

144

144

 

 

 

 

 

 

 

 

 

This period

86

 

Previous period

76

 

 

 

 

 

 

 

 

 

September

19

20

21

22

23

24

25

 

 

 

 

 

 

 

 

 

Weather - 1 hr after sunrise

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Wind direction/strength1

SW2

NE2

S1

W3

E3

SW1

SW3

Visibility (km)

25

30

10

15

30

30

20

Cloud cover (0-10)

0

0

0

2

0

0

6

Temperature o C)

19

19

18

21

14

18

22

Precipitation

 

 

 

 

 

 

 

1 Beaufort scale