Swanmon

Swanmon (スワンモン) is a swan-like Digimon seen among the Digimons whose homes had been destroyed by Millenniummon, as well as trying to help ElDradimon get back to home.

Background
Swanmon is one the Digimons lost its home to Millenniummon’s rampage. After losing its home, it helped Taichi, Takeru, and Leomon, along with other homeless Digimon, push ElDradimon to Cloud Continent.