estivage
/ɛstivaʒ/ or /ɛstivɑʒ/Definitions
1. noun
a period of time during which an animal, especially a migratory one, rests or stays in a particular place, especially during the hot summer months
“The deer’s estivage in the forest was crucial for its survival before migrating to a new habitat.”
2. noun
a seasonal migration or movement of animals to a more favorable place, especially during the summer
“The birds’ estivage to the northern regions was triggered by the warmer temperatures.”