And btw... Here's the Marans thread I frequent. Great thread with lots of knowledge there about our Marans...
https://www.backyardchickens.com/threads/international-black-copper-marans-thread-breeding-to-the-sop.1122465/page-2299
My last hatch was under a BCM broody from my Marans flock. All 3 Olive Eggers that hatched were cockerels so re-homed them also. Wanted Olive Egger hens. 😡
Going to try again in the spring and hopefully my only EE isn't throwing mostly boy heavy progeny.
If I were you I'd try contacting your...