They are говоры. Говор is not the same as dialect.Originally Posted by Trzeci_Wymiar
As for the difference in grammar and vocabulary - it's minimal and casual, and you can talk to someone from another region for hours, or even days or weeks, and not notice any difference in grammar and vocabulary in comparison with "standart" language. In fact, all the Russians speak "standart" language.
Anyway, using the word "dialect" as applied to the Russian language, is wrong, it only confuses foreigners because they think that there really are "dialects" with different grammar and vocabulary in Russian. But there are NOT.