Due to Luftwaffe's policy of reinforcing units in need by drawing upon other unit's manpower, many units acted as donor units to form or enhance other units. Whenever a new unit was formed from donor unit, the new unit would continue to use the same emblem. Hence when Woldenga's I./JG 1 was incorporated into JG 27, I./JG 1's original emblem became that of III./JG 27. When JG 1 was reformed in 1940, II./JG 1's emblem was the Tatzelwurm, a mythical Norse serpent. This emblem probably had its origins with its parent, JG 3. Several of the squadrons as well as Groups (Gruppen) tended to inherit the emblems of their parent units after moving to JG 1. For each squadron, individual flights (Schw?rme) tended to be color-coded to follow the Finger Four formation. Usually those were "green", "red", "yellow" and "white". Usually the Headquarters Flight for the wing (Geschwaderstab) or for the group (Gruppenstab) carried the green emblem.