Breakdown of Перелётные птицы осенями отправляются на юг.
осень
autumn
птица
bird
на
on, at / by (transport) / to (a place) / to (in answer to)
юг
south
перелётный
migratory
отправляться
to set off
Questions & Answers about Перелётные птицы осенями отправляются на юг.
Why do we use the instrumental plural осенями here instead of the standard осенью?
You likely already know that осенью (instrumental singular) means in autumn. Using the plural осенями emphasizes temporal iteration—it highlights that this happens repeatedly, autumn after autumn. This bare instrumental plural is specifically used to stress the recurring nature of seasonal actions over multiple years.
How is the word перелётные formed to mean migratory?
It comes from the root -лёт- (flight) combined with the prefix пере-, which indicates movement across a space or transferring from one place to another. Together as an adjective, перелётные птицы essentially means cross-flying birds, which perfectly captures the concept of migration.
Could I just use a verb of motion like летят (fly) instead of the reflexive отправляются?
Yes, летят на юг is very common and grammatically correct. However, отправляются (from отправляться, to set off or depart) places the focus on the initiation of the journey—the organized mass departure of the birds—rather than just their physical mode of transport.
Why do we use на юг rather than в юг for to the south?
In Russian, the four compass directions (север, юг, восток, запад) always pair with the preposition на. Because the birds are currently moving towards that destination, на is followed by the accusative case (юг) rather than the prepositional case.
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