Category: Ciconiidae


Wood Stork (Mycteria americana) Science Article 1 abstract All 10 Wood Stork eggs collected at Merritt Island National Wildlife Refuge in 1973 contained residues of DDE (geometric mean 4.0 ppm wet weight) and PCBs (1.2 ppm). Nine other organochlorines were found at lower frequencies in the eggs. Eggshells from the recent period were 8.9% thinner […]

Variable inter-annual relationships between T-cell mediated immunity and individual traits in White Storks

White Stork (Ciconia ciconia) Science Article 4 abstract Aims: The PHA skin-testing technique has become a widespread way of studying the ecological and evolutionary implications of T-cell mediated immunity (CMI) in birds. Several breeding and individual traits have been found to be related to CMI. However, it is not known how consistent these relationships are […]

Variation of primary production during winter induces synchrony in survival rates in migratory white storks Ciconia ciconia

White Stork (Ciconia ciconia) Science Article 12 abstract The environmental conditions that migratory birds experience during their stay at different locations throughout the year can have significant impact on the variation of annual survival rates. Because migrants often crowd during non-breeding, environmental conditions can affect survival rates of individuals originating from different breeding populations, thus […]

Development of thermoregulatory ability during ontogeny in the White Stork Ciconia ciconia

White Stork (Ciconia ciconia) Science Article 1 abstract The development of thermoregulation abilities in White Stork Ciconia ciconia nestlings was examined. Our results showed that body mass, and not age, was the best predictor for thermoregulatory ability despite what was found in passerines. White Stork nestlings did not develop their thermoregulatory abilities abruptly since their […]

Time budget, habitat use and breeding success of White Storks Ciconia ciconia under variable foraging conditions during the breeding season in Switzerland.

White Stork (Ciconia ciconia) Science Article 9 abstract Following its extinction in 1950, the White Stork Ciconia ciconia was reintroduced to Switzerland. We analysed time budget, habitat use and breeding success of 28 breeding pairs at five sites in 1994. At two sites the adults were given extra food daily (SF), at the others no […]

Flight behaviour of White Stork Ciconia ciconia on their migration over southern Israel

White Stork (Ciconia ciconia) Science Article 8 abstract More than 200 flight paths of White Storks were recorded during spring and autumn 1991/92 at two sites in southern Israel by tracking radar. White Storks did not adapt flight behaviour to maximize cross-country speed as predicted by theory. Gliding airspeed was not adjusted to climb rate […]