It's quite possible, although based on his behavior, it seemed like he revealed himself as a Mafia member by responding to Ment's provocation...
Swans and geese belong to the order of Anseriformes -> goose-swans -> sister Alyonushka and her brother Ivanushka -> Ivan Tsarevich -> KindShaman
And how are goose-swans related to Alyonushka and Ivanushka?