1. Eastern Bird Banding Association Annual Meeting, April 9-11, 2010
Eastern Bird Banding Association Annual Meeting, April 9-11, Rocky Gap State Park, Flintstone, Maryland

2. Banding returns from backyard Dark-eyed Juncos to nesting Canada Geese by the mall Dr. David Thorndill, Professor of Biology Community College of Baltimore County  webpage: 

3. Canada Geese 2008-2010 Individual observations

4. A study of banded Canada Geese
June 28, 2007 , Larry Hindman of the MD Wildlife Division-DNR banded Canada Geese in Preston, Caroline County, MD.
In May 2008 many of these geese were seen near White Marsh Mall in Baltimore County, MD, about fifty miles northwest of Preston.
Geese are lured close with bread and band numbers are read directly.

6. A study of banded Canada Geese
Thirty-seven geese with band number prefixes have been see in the White Marsh area between May 2008 and Only the last three band digits are used here is listed as # 094, seen here.

7. One goose, called Domino, was not banded but is easily recognizes by a wing deformity. Domino is unable to fly and has often been the only goose in the pond, especially in the winter. Other geese may be seen at any of three ponds about a quarter mile apart or on grassy lawns.

8. Domino and #082 in 2008 Pairing first noticed September 20th
Domino
082
2008
May O
26,27
June F
2,3,8
July T
August E
September
20 N 20
October 11
November
O FTEN
Domino
December
December

9. Domino and #082 pair February 2009 They have seven goslings in May but #082 and one gosling disappear in August
2009
DOMINO -
082
January-09
O FTEN 17
February 21
March 15
April
4,12,13,23,26
4,12,13 nest?
May
17,23,25
June
1,7,10,18,22,24,28
July
4,14
August 27 6
gone
September
4,7,12, 20
October
3, 11, 30
November
1, 7
December
4, 12, 20
Chicks 7 7 7
gone
gone 7

10. Domino, #082 and seven goslings

11. Domino, #082 and seven goslings

13. Geese #094 and 120 and eight goslings May 2009, White Marsh Mall area

14. Leg band of Goose 1038-55094 Banded June 26, 2007, in Preston, Caroline County

15. Geese 094 and 120 had broods in 2008 and 20096 5
Geese 094 and 120 had broods in 2008 and 2009
094 - male
120
2008
chicks 6
May
10,13,15,17,19
June
5,7,14, 18,20
5,7,14, 20
July
August 31
September
11, 28
October
November
December 14
January-09
February
15, 21
March
April
7. 17,23
7, 17,23
1,7, 18,22
1,7, 18 27
4,12, 19, 25
4, 12, 20
3, 11, 30
1, 7, 21 4
4,23 8 8 8

16. Band #
pair
075 - male
123-
074 -male
086-female
2008
chicks
female
May
27,30 29
5, 10, 13, 15, 19, 26, 27, 30
4 then 3
5, 10, 13, 15, 19,
26, 27, 30
June
18,20,27
8, 14
2, 7, 17,18, 20, 27
July
August 17 31
10, 23
September
8, 20
11, 28
October 11
November
December 14
Jan-2009
February 21
March
April 5
10, 17, 23
7, 9, 10, 17, 23
1, 7,10 4
1, 7, 22
12,27
6, 12, 27
4, 12, 25 25 3
3, 11, 30
1, 7, 21
4, 12
Jan.2010
20, 23, 28 20 28

17. Number of times each goose was seen each month.
band
May
2008 6 7 8 9 10 11 12
Jan
2009 2 3 4 5
2010
Dom
wierd
wing O F T E N 1
074
075
076
078
082
085
086
087
088
089

18. Number of times each goose was seen.
band
May
2008 6 7 8 9 10 11 12
Jan
2009 2 3 4 5
2010
093 1
094
095
096
098
100
101
103
104
106
107
108
109

19. Number of times each goose was seen.
Band #
May
2008 6 7 8 9 10 11 12
Jan
2009 2 3 4 5
2010
110 1
111
112
114
115
117
118
119
120
121
122
123

20. Field study to estimate species population size Capture-Release-Capture Method
Best Conditions: a closed population
Large population
Birds mix freely
No animals born
No animals die
No migration into or from out of the study area
All animals have an equal chance of being captured and recaptured

21. Field study to estimate species population size. 1
Field study to estimate species population size 1. Band birds under best conditions 2. Recapture banded and unbanded birds Then estimated population size is: P = N x T B
P = Total population size N = number banded before recapture period B = recaptured that are banded n = recaptured that are unbanded T = B + n = total birds caught during the recapture date(s)

22. Acceptable conditions for population estimates of Juncos and White-throated Sparrows
Winter populations seem fairly stable from December 1 until March 1
Banded returns from earlier years are counted as unbanded for their first capture of the season
Recapture period may be from 1-3 days and should have at least 5 recaptured banded birds
Individual birds are only counted once during the recapture period
Nets and traps are near winter feeding areas

23. Junco Populations 1999 Cub Hill, Baltimore County, MD
population size: P = N x T B
P = Total population size
N = number banded before recapture period
B = recaptured that are banded
n = recaptured that are unbanded
T = B + n = total birds caught during the recapture date(s)
RED- hypothetical
calculations if one more
banded bird were recaptured P N T B n
date 61 39 22 14 8
Jan. 11
103 94 47 11 12 5 6
Jan.
16-17
185
141 53 7 2 3
23-25 80 58
30-31 91 9
Feb.
6-7

24. Junco Populations 2002-2003 Cub Hill, Baltimore County, MD
population size: P = N x T B
P = Total population size
N = number banded before recapture period
B = recaptured that are banded
n = recaptured that are unbanded
T = B + n = total birds caught during the recapture date(s) P N T B n
date
198 51 35 9 26
Jan. 02
19-21 75 44 12 7 5
Jan. 03
26-28 92 50 22 10
Feb.03
7-11
104 60 59 34 25
15-17

25. THE
THE END
END

26. White-throated Sparrow Populations Timonium and Cub Hill, Baltimore County, MD
dates
location 52 24 11 13
Jan ,
Tim. 49 36 15 4
Feb. 5, 39 10 8 2
Feb , 50 42 6 5 1
March 18, 16 12
Dec. 12, 7
Dec , 21
Jan. 11, 31 9 3
Jan , 35 14
Jan , 45 29
Feb. 7-11,
Cub 47 34 18
Feb ,

28. Winter Population Summary
Dark-eyed Junco
Mean=
White-throated Sparrow

29. Pine Siskin Banding 1982 Timonium, Baltimore County, MD
population size: P = N x T B
P = Total population size
N = number banded before recapture period
B = recaptured that are banded
n = recaptured that are unbanded
T = B + n = total birds caught during the recapture date(s) P N T B n
date
306 85 18 5 13
Feb 02
Site B
2306
186 62 57
March 26-28
Site A
2268
243 56 6 50
April 2-8

30. Winter Population Summary
Dark-eyed Junco
Mean=
White-throated Sparrow

33. THE
THE END
END