Surely no expert here, but this is the way I say them
Wyandotte- WYE-an-dot (I say why and DOTE)
Ameraucana- am-ER-uh-CAUN-uh
CO-chin
And help with-
Appenzeller~~Just the way it looks AP en zel ler
Aseel--- a-SEEL
D'Uccle---dew CLAY
Campine---CAM pine
Crevecoeur---CRE ve core (like apple...