I have both together. Tiny Seramas & Modern Games in with crested breeds, Marans, Welsummers, etc. Haven't noticed my largest roosters bothering my smallest hens, but the banty roosters certainly try to mount the LF ladies. It's pretty hilarious to see; looks like a little chicken jockey riding around!
Just know that sometimes smooth headed breeds will pick the feathers off the heads of crested ones. Don't think they do it to be aggressive. It appears like they are trying to do them a grooming "favour" (like if you or I had a cowlick and some thoughtful person tried to smooth it down).
Just know that sometimes smooth headed breeds will pick the feathers off the heads of crested ones. Don't think they do it to be aggressive. It appears like they are trying to do them a grooming "favour" (like if you or I had a cowlick and some thoughtful person tried to smooth it down).