Fig. 1.
The number and age of individuals from the songbird species sampled in 2016_
| Bird Species | na | April 2016 | nb | October 2016 | nc | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Age | Age | ||||||||||
| im. | ad. | L | – | im. | ad. | L | – | ||||
| Turdus merula | 37 | 6 | 1 | 0 | 0 | 7 | 18 | 11 | 1 | 0 | 30 |
| Erithacus rubecula | 210 | 94 | 13 | 0 | 1 | 108 | 79 | 23 | 0 | 0 | 102 |
| Sylvia atricapilla | 11 | 7 | 3 | 0 | 0 | 10 | 1 | 0 | 0 | 0 | 1 |
| Emberiza schoeniclus | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
| Fringilla coelebs | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
| Cyanistes caeruleus | 7 | 6 | 0 | 0 | 0 | 6 | 1 | 0 | 0 | 0 | 1 |
| Parus major | 3 | 2 | 0 | 0 | 0 | 2 | 0 | 1 | 0 | 0 | 1 |
| Phoenicurus phoenicurus | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
| Parus spp. | 1 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
| Emberiza citrinella | 2 | 0 | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 |
| Dendrocopos major | 2 | 1 | 1 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 |
| Phylloscopus trochilus | 6 | 0 | 0 | 1 | 0 | 1 | 3 | 2 | 0 | 0 | 5 |
| Turdus philomelos | 3 | 2 | 1 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 0 |
| Total | 285 | 121 | 21 | 2 | 1 | 145 | 102 | 37 | 1 | 0 | 140 |
The number of black-headed gulls (adult birds and nestlings) sampled in 2017 and 2018_
| Colony | X Coordinate | Y Coordinate | No. BP | No. BS 2017 | No. BS 2018 | Total |
|---|---|---|---|---|---|---|
| Koronowo | 53.3341667 | 17.965 | 657 | 53 | 70 | 123 |
| Bydgoszcz – Stary Port | 53.1211111 | 18.09361111 | 185 | 16 | – | 16 |
| Bydgoszcz – Przemysłowa | 53.1186111 | 18.10527778 | 170 | 50 | 46 | 96 |
| Skoki Duże | 52.6063889 | 19.78916667 | 4500–5500 | – | 70 | 70 |
| Jankowo | 52.7827778 | 18.08416667 | 451 | 68 | 57 | 125 |
| Kościeszki | 52.5733333 | 18.33111111 | 354 | – | 56 | 56 |
| Borów | 52.1202778 | 19.56 | 100 | – | 21 | 21 |
| Jeziorsko | 51.7372222 | 18.64916667 | 100 | – | 15 | 15 |
| Przykona | 52.0055556 | 18.65777778 | 3000 | – | 33 | 33 |
| Wola Rogozińska | 51.9713889 | 19.455 | 3000 | – | 18 | 18 |
| Zlaków Kościelny | 52.1969444 | 19.78916667 | 300 | – | 16 | 16 |
| Jezioro Ryńskie | 53.9194444 | 21.50861111 | 1900–2500 | – | 30 | 30 |
| Sętal | 53.9036111 | 20.48222222 | 425–450 | – | 30 | 30 |
| Jezioro Nielbark | 53.3613889 | 19.52777778 | 3000 | – | 30 | 30 |
| Zbiornik Poraj | 50.6411111 | 19.2313888 | 1060 | – | 22 | 22 |
| Łężczok | 50.1436111 | 18.2797222 | 360 | – | 21 | 21 |
| Stawy Zawadka | 49.9644444 | 19.1163888 | 460 | – | 19 | 19 |
| Total | 187 | 554 | 741 | |||