Nest Record Data 2009

In 2009 the boxes at all of our sites were checked on a regular basis during the breeding season and in most cases the pulli were ringed. In total 237 nest were recorded containing 1,793 eggs and from which 1,472 pulli eventually fledged.

The group submitted all 237 nest record cards to the BTO during 2009; twenty one more than in 2008. The analysis is as follows:

 

Species

Number of Nests

Average number of Eggs

Average number of Pulli

Nest Success

Nest Failure

Barn Owl

2

4.0

3.0

100%

0%

Blackbird

2

3.5

1.5

50%

50%

Blue Tit

69

10.5

9.0

90%

10%

Canada Goose

7

4.1

1.6

29%

43%

Collared Dove

1

2.0

2.0

100%

0%

Coot

23

2.2

1.7

57%

0%

Great Tit

92

8.7

7.1

89%

9%

Jackdaw

3

3.7

2.3

67%

33%

Kestrel

3

4.3

2.7

67%

33%

Mallard

1

2.0

0.0

0%

100%

Mute Swan

1

6.0

6.0

100%

0%

Pied Wagtail

1

4.0

4.0

100%

0%

Robin

1

5.0

5.0

100%

0%

Spotted Flycatcher

1

5.0

5.0

100%

0%

Starling

4

4.8

3.3

75%

25%

Stock Dove

2

2.0

2.0

100%

0%

Swallow

16

4.7

4.6

88%

6%

Tawny Owl

2

2.0

2.0

0%

50%

Wood Pigeon

2

2.0

0.5

50%

50%

Wren

4

5.8

2.5

50%

50%

Total

237

 

 

 

 


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