I don't know if fantails have any physical features you can sex them by, but the males groan more and the girls are quiet in all pigeons. The males will show mating behavior but since you have only one possible female, I don't know if her own baby would show that behavior or not.
I know...
Yes the fantails don't fly as well or as much as the homers. I wish we were close, they are so beautiful. I need females. Put little address labels on them and maps and send them here. hehe
That picture is of a fantail pigeon and yes absolutely gorgeous! I am looking for some in my area, Columbus Ohio and cannot find any. I have two males who would like girls. :)