Coat of arms of the Canadian Archbishop Albert LeGatt, Archbishop of Saint Boniface.
Blazon
Azure a fess wavy Argent between in chief a garb Or flanked by two squares Ermine and in base a dove volant affronty Argent nimbed and membered Or;
Motto
UT OMNES UNUM SINT;
Symbolism
Blue is a colour associated with the Blessed Virgin Mary as well as the prairie skies. The wavy stripe indicates the Red River in Manitoba, as well as the waters of baptism. The garb of wheat refers to the one bread of the Eucharist, source of the Church’s unity as the one Body of Christ. It also refers to the prairie agriculture of Manitoba, in which the Archdiocese of St. Boniface is located, and of Saskatchewan, where Archbishop LeGatt was born, grew up on a family farm, and spent much of his ministry as a priest and bishop. The ermine squares are based on the ancient arms of Brittany, the home of Archbishop LeGatt’s ancestors. The dove is a symbol of the Holy Spirit, source of the Church’s communion.
Motto
UT UNUM SINT (John 17:21), meaning “That they may be one”, is a reference to the unity of the Church in Christ, and has been used by Archbishop LeGatt since 2001.
Reference:

reg.gg.ca
archsaintboniface.ca
Own work
SajoR