According to the folk calendar - Titus Ice Breaker

Titus Icebreaker is popularly celebrated on April 15 (April 2 according to the old calendar style). On this date, Orthodox believers honor the memory of Saint Titus the Wonderworker, who lived in the 9th century in the territory of Asia Minor (modern Turkey). Thanks to him, the holiday was named. Titus aspired to become a monk from his youth. He went to the Studite monastery and took monastic vows. Titus stood out among other monks for his humility, persistent work ethic and great virtue. He was appointed a priest, and the Lord rewarded the monk with the gift of miracles. The saint became famous for his active defense of icons from iconoclasts and, by the will of God, lived to an old age. The people called the day of Titus Icebreaker, since the rivers finally opened up from ice. Residents did not miss the opportunity to tell fortunes on the ice: if a cracked ice floe went under the water, then a difficult year was expected; if it floated on top, it was the opposite. They were happy if there was more water after the ice broke, because its spill foreshadowed an abundance of herbs harvested for the winter for livestock. Often, on Titus Icebreaker, flocks of crows gathered near houses. To prevent them from causing trouble or hunger, they were driven from the rooftops. And not without reason, since supplies in cellars and barns were practically running out. The owners checked the remaining grain, began to save on baking bread, and the grain stored for sowing was forbidden to touch. Therefore, the date had a second name - Breadless Day. It was bad if the snow melted above the cellar first. This meant that wet grain was poured into the cellar in the fall and by spring it began to rot, releasing heat. But the peasants knew how to use it in practice. Beer or kvass was brewed from sprouted grain (malt). Titov's day was also called Barysh-day. It was a holiday of traders and resellers. In order for transactions to be successful, they spent the day in merry festivities. It was believed that a loud celebration would lead to great income. The signs on Titus Icebreaker were used to judge the upcoming weather. The cooing of doves predicted the coming warming. Seeing black grouse going deep into the forest to spend the night meant the approach of rain and winds. The singing of the dergacha (crake) foreshadowed a fruitful summer. A flock of cranes was observed flying south due to a bad harvest.