A case of partner change in a pair during the nesting period in the white stork (<i>Ciconia ciconia</i> L. 1758, Ciconiiformes, Ciconiidae) and its consequences

The nesting behavior of white storks, Ciconia ciconia, when one of the partners in a pair deserted, is described. This case was observed in the summer of 2023 in a nest located in the village of Shestikhino, Nekouzsky District, Yaroslavl Region. The behavior of storks on the nest was recorded around the clock using an online camera. Around the middle of the season, the male of the pair was injured and left the nest. Eight days later, a stranger male stork began to appear on the nest. The behaviors of the stranger, the female, the resident male and the chicks are described.