Around, and others,

[Rachel Adams]

Are the parts marked by asterisks natural?

I live in a small city and there are many birds *around*: pigeons, swallows, doves, *and others.* Pigeon -is a symbol of freedom. It's considered to bring good luck and peace.
Crows, all over the world -are the type of birds that are considered *unlucky.* (I mean bring bad luck) My country's national bird is the pheasant. They live in the Caucasus and the Balkans.

Is the article optional before "Caucasus" and "Balkans"?

 

[teechar]

Pigeons -is are a symbol of freedom.

or

Pigeons -is a symbolize of freedom.

It's They're considered to bring good luck and peace.

We generally use the plural when we're talking about something in general, because we are not talking about one instance/member of that thing.

Crows, all over the world are the type of birds that are considered unlucky. (I mean they bring bad luck). My country's national bird is the pheasant.

They live in the Caucasus and the Balkans.

You can also say "It's native/endemic/confined to the Caucasus and the Balkans".

Is the article optional before "Caucasus" and "Balkans"?

No. It is required. You can drop it if you're using "Balkan" as an adjective. For example:
I love Balkan folk music.
I don't think it works for "Caucasus" because the adjective "Caucasian" is then used.

 

[Rachel Adams]

or



We generally use the plural when we're talking about something in general, because we are not talking about one instance/member of that thing.



You can also say "It's native/endemic/confined to the Caucasus and the Balkans".

No. It is required. You can drop it if you're using "Balkan" as an adjective. For example:
I love Balkan folk music.
I don't think it works for "Caucasus" because the adjective "Caucasian" is then used.

You said: "We generally use the plural when we're talking about something in general, because we are not talking about one instance/member of that thing". If I used "Pigeons are the symbol of peace." Would it work as a generalisation with the definite article?

 

[teechar]

If I used "Pigeons are the symbol of peace" would it work as a generalisation with the definite article?

The definite article makes them the only symbol of peace. If you want to make a more open statement, use "a symbol of peace".

 

[Barque]

You could also say "The pigeon is a symbol of freedom (in Georgia/the Caucasus)". Here, "the pigeon" means "Pigeons (in general)".

 

[teechar]

It's more likely to be a symbol of peace than freedom.