@misc{Głowaciński_Zbigniew_Phenology_1973,
 author={Głowaciński, Zbigniew},
 editor={Polish Academy of Sciences, Institute of Ecology},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 address={Warszawa},
 howpublished={online},
 year={1973},
 language={eng},
 abstract={The Collared Flycatcher, Ficedula albicollis (Temm.) arrives in the Niepołomice Forest during the period from April 10th-20th, depending on the early spring temperature. The start of clutches is affected by the temperature prevailing not more than 10 days before the first egg is laid. The average size of 120 complete hatches was 6.1 eggs (min. 3, max. 8 eggs), clutches containing 6 eggs being most frequently observed (55.8%), In 1970 losses from the time the first eggs were laid up to the advanced fledgling stage was 28.2%. In 1968 and 1969 losses were far higher (49.2% and 71.6%), which is explained as primarily due to working methods. In 1970 population increase was 4.7 nestlings per breeding pair.},
 title={Phenology and breeding success in a population of collared flycatcher, Ficedula albicollis (Temm.) in the Niepołomice Forest (southern Poland)},
 type={Text},
 URL={http://www.rcin.org.pl/Content/72606/PDF/WA058_86575_P2840-T21_Eko-Pol-A-Nr-15.pdf},
 volume={21},
 number={15},
 journal={Ekologia Polska},
 publisher={Państwowe Wydawnictwa Naukowe},
 keywords={Collared Flycatcher, breeding biology, Poland, Niepołomice Forest, Ficedula albicollis},
}