Yes...
@sourland
Cochins and Silkies will take longer to lay...and lay maybe 2 eggs, then decide to sit on them to brood. Also, if you have bantam Cochin too, Silkies and bantam Cochins won't lay the full size eggs you see in the grocery stores. They have smaller, maybe half size to 3/4 size.
You won't be getting lots of eggs from these breeds.
If you want eggs....you'll need to purchase Red Sex Links or even the Black Sex Links. They mature quickly, are sexed at hatch by down color, and lay lots of eggs.
Hopefully somebody will lay soon.