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* |