Bittern (Botaurus stellaris)
FI: Kaulushaikara, SV: Rördrom
Population trend: Increasing 
Distribution trend: Expanding
Breeding pairs: 1,000–1,500
Finnish red list category: LC
| Degree of breeding evidence | Grids | % of grids |
|---|---|---|
| Confirmed | 83 | 2,1 % |
| Probable | 551 | 14,3 % |
| Possible | 143 | 3,7 % |
| Total | 777 | 20,1 % |
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