April 2 Zuzana resided within Sinai Peninsula. She crossed Gulf of Suez probably on the 1st of April.
April 4 Willem Van den Bossche (an ornithologist) observed Zuzana at Kfar Ruppin site in Israel; she stopped there together with other 46 black storks.
April 5 Viktor's nest was occupied by another couple of black storks.
April 9 Zuzana was observed in Israel.
April 13 Kristyna was located in snow-covered Brdy hills using the signal of ground transmitter. Then, she was found in her original nest. She shared the nest with a stork male.
April 20 Kristyna started to nest.