The stork returned to the nest in Kurzeme close by to the Zlēkas parish.
It had left Kurzeme after the bought holding the nest had broke.
"Most of the black storks have already hatched their young this year, however there are some surprising discoveries before the nesting season in April and May when we check the nests that had been empty before," said agency representative Helmuts Hofmanis.
The Nature Conservation Agency had set up an artificial nest platform next to the tree a few years ago.