This is the 11282nd most frequent French word.
quitteront
"Will leave."
The word 'quitteront' is used here in the future tense to indicate leaving a specific place or event
Ils quitteront la réunion à 15 heures.
They will leave the meeting at 3 PM.
The verb 'quitteront' in this context is referring to the departure of the birds from a location as part of their natural behavior
Les oiseaux quitteront leur nid à l'arrivée du printemps.
The birds will leave their nest upon the arrival of spring.
Here, 'quitteront' is utilized to express the act of resigning or stepping away from a profession or role in the future tense