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Article
J. Banbura, Auteur ; P. Zielinski, AuteurDans Ardea (88(1) 2000)The constancy of laying date, clutch size, numbers of hatchlings and fledglings, and mean egg volume per clutch was studied in female Barn Swallows Hirundo rustica in central Poland in 1994-97. Laying dates of first clutches, clutch size, the nu[...]
Article
J. Banbura, Auteur ; P. Zielinski, AuteurIn a population of Barn Swallows (Hirundo rustica) in central Poland studied in 1994-1997, the mean onset of egg laying ranged from 18 to 30 May and mean clutch sizes were 4.86 +/- 1.02 (SD) for first clutches, 4.47 +/- 0.75 (SD) for second clut[...]
