VOL. 44 · NO. 1 | June 2009

Articles (10)
Acta Ornithologica
44(1), 1-7, (1 June 2009)https://doi.org/10.3161/000164509X464821
KEYWORDS: Black-winged Stilt, Himantopus himantopus, oasis wetland, Sahara, breeding biology, clutch size, egg size, laying order, hatching asynchrony
44(1), 9-16, (1 June 2009)https://doi.org/10.3161/000164509X464830
KEYWORDS: Emberiza citrinella, yellowhammer, song characteristics, recognition, dialect
44(1), 17-26, (1 June 2009)https://doi.org/10.3161/000164509X464849
KEYWORDS: Spanish Imperial Eagle, Aquila adalberti, home range, spatial use, territorial behaviour
44(1), 27-36, (1 June 2009)https://doi.org/10.3161/000164509X464858
KEYWORDS: annual variability, relative date hypothesis, lay date, clutch size, multilevel modelling, Parus major, Cyanistes caeruleus, Ficedula hypoleuca
44(1), 37-44, (1 June 2009)https://doi.org/10.3161/000164509X464867
KEYWORDS: EU accession, farmland birds, monitoring, Hungary
44(1), 45-52, (1 June 2009)https://doi.org/10.3161/000164509X464876
KEYWORDS: Coot, Fulica atra, nest predation, breeding success, population trends, Milicz Ponds
44(1), 53-58, (1 June 2009)https://doi.org/10.3161/000164509X464885
KEYWORDS: Spanish Imperial Eagle, Aquila adalberti, feeding ecology, Non-breeding season, rabbit viral haemorrhagic disease, alternative prey
44(1), 59-68, (1 June 2009)https://doi.org/10.3161/000164509X464894
KEYWORDS: breeding related to altitude, divorce rate, Parental care, responses to acoustic stimuli, Strix aluco, Tawny Owl, Territory defense, territory quality, testosterone
44(1), 69-80, (1 June 2009)https://doi.org/10.3161/000164509X464902
KEYWORDS: Białowieża National Park, timing of breeding, climate change, clutch size, nest loss, nestlings' ageing
44(1), 81-88, (1 June 2009)https://doi.org/10.3161/000164509X464911
KEYWORDS: Tengmalm's Owl, Aegolius funereus, female parental care, brood desertion, food abundance, reproductive success
44(1), 89-94, (1 June 2009)https://doi.org/10.3161/000164509X464920
KEYWORDS: phenology, climate changes, migration, first arrival dates, temperature, Lublin, Poland
44(1), 95-99, (1 June 2009)https://doi.org/10.3161/000164509X464939
KEYWORDS: developmental plasticity, feather traits, ptilochronology, Blackcap, Sylvia atricapilla, within-individual repeatability
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