@misc{Surmacki_Adrian_Breeding_1998, author={Surmacki, Adrian}, volume={33}, number={3-4}, editor={Polska Akademia Nauk. Muzeum i Instytut Zoologii}, copyright={Rights Reserved - Restricted Access}, address={Warszawa}, journal={Acta Ornithologica}, howpublished={online}, year={1998}, publisher={Muzeum i Instytut Zoologii PAN}, language={eng}, language={pol}, type={Text}, title={Breeding avifauna of small mid-field ponds in North-western Poland}, keywords={breeding birds, Poland, Pomerania, Western, ecology, mid-field ponds, aquatic habitat, waterfowl, birds, Aves}, }