Abstract
The contribution summarized the impact of flash flood, long-lasting flood and catastrophic flood on the diet composition of Common Kingfisher (Alcedo atthis) on the basis of papers published by Čech and Čech (2004, 2013) from Štěpánovský stream and Blanice River (Central Bohemia, Czech Republic). Flood situation changes the conditions for fish hunting (higher and turbid water, fast flow), however, it can even cause the damage of the brood of kingfisher by destroying the nest wall or drowning of nestlings in the nest chamber (Fig. 1).
Floods change the diet spectrum of kingfisher by removing of former fish populations from the water body (Fig. 2), by preventing the predator access to benthic fish species and by suppressing the sub-surface fish species avoidance reaction against predator (Fig. 3, 4). Fish hunted during the floods are generally also larger and heavier compared to those the bird hunted during the normal situation (Fig. 4).