If they are Dutch or Belgian Wyandotte bantams and breeders from those countries are saying unanimously that your 2 birds are cockerels, then I would put more weight on their opinions than the opinions in here. Because most of us are not familiar with Dutch or Belgian Wyandottes, and the cockerels may have characteristics unique to birds of those countries that we don't know about.Funny thing again is that Dutch and Belgian wyandotte breeders in their Facebook group all tell me that these two chicks are definitely cocks. They unanimously say there is no doubt about it anymore. Some say they are 100% sure and even want to bet. How contradictory and confusing...
I would still keep those two until you know for sure. It would be a shame to give away pullets by mistake,
