Learn Farsi: عقاب سنگین است، با این حال خیلی اوج می‌گیرد. - The eagle is heavy; nevertheless, it soars a lot.

Literally, bâ in hâl means "with this state" or "with this situation" (bâ = with, in = this, hâl = state or condition). In this sentence, it acts as a compound coordinator meaning "nevertheless" or "even so," contrasting the eagle's heavy weight with its ability to fly high.

I see the verb migirad (takes), but how does ouj migirad mean "soars"?

The word ouj means "peak," "zenith," or "altitude." When combined with gereftan (to take) to form the compound verb ouj gereftan, it literally means "to take altitude." In Farsi, this is the standard way to say a bird "soars" or an airplane "gains altitude."

Could I put va (and) before bâ in hâl?

Yes, you often see va bâ in hâl (and nevertheless). However, just like in English, you can simply use a comma and drop the "and". Both clauses are independent, so bâ in hâl alone is enough to link them with a contrast.

Why don't we need a pronoun like ân (it) in the second half of the sentence?

Farsi verbs already include the subject in their endings. Since the subject (the eagle) was established in the first clause, we don't need to repeat it or use a pronoun like ân (it). The -ad ending on migirad (it takes) tells us exactly who is doing the soaring.