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Table 1 Some characteristics of data collected on nesting of European Robins in closed nestboxes in Lithuania

From: Is nesting in closed nestboxes advantageous for the European Robin (Erithacus rubecula)?

Parameters

Study sites

Total

Site A

Site B

Site C

Site D

Site E

Other sites

Study period

1978–1990,

1997–2020

1984–1993

1990–2020

1999–2002

1999–2020

1995–2020

1978–2020

Total number of nestbox-seasons

9967

4356

2313

200

1450

*

18,286*

Numbers of tit nestbox-seasons

9910

4138

0

0

1450

*

15,498*

Numbers of starling nestbox-seasons

57

218

2313

200

0

*

2788*

Breeding cases of robins recorded

30

13

36

2

0

9

90

% of nestboxes occupied by robins

0.30

0.30

1.56

1.00

0

*

0.44*

  1. *At other sites, data were collected by irregular inspection of nestboxes; these data are not comparable with data collected at study sites A–E, and they are not included in the total count