Breakdown of C'est dans le marais qu'ils observent les oiseaux.
ils
they (masculine/mixed)
dans
in, inside
c'est
it is, that is
l'oiseau
the bird (m)
que
that (introducing a clause)
observer
to observe
le marais
the marsh
Questions & Answers about C'est dans le marais qu'ils observent les oiseaux.
Why do we use que here instead of où, since dans le marais is a location?
In French cleft sentences, the structure to emphasize a prepositional phrase is always c'est [phrase] que. Even though dans le marais is a place, we use que because it acts as a structural link for the emphasis, not as a standard relative pronoun meaning "where". Using où here would be grammatically incorrect.
Could I emphasize the location without using a preposition, like C'est le marais où...?
Yes, but it changes the grammar. If you drop the preposition dans, you are no longer using a prepositional cleft sentence. You would instead say C'est le marais où ils observent les oiseaux (It's the marsh where they observe the birds). Including the preposition dans forces us to use the c'est ... que structure taught in this lesson.
Does le marais always refer to a natural marsh?
While it literally means a marsh or swamp, Le Marais is also the name of a famous historic district in central Paris. Given the context of observing birds (les oiseaux), this sentence is definitely talking about a literal marsh out in nature.
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