My ganders fight like that all the time during the spring. Sometimes it is over a female and sometimes just because they "feel" like it (I swear!) Let them have it out--thye dont ever seem to get as nasty as roos do--Meaning I dont ever see any blood! I think the longer you dance around the subject the longer it will be until they straighten it out and decide who will be the boss. They have to do the deciding...we cant control that. Terri O