So sorry about your loss.
For future reference, your chicks couldn't have been feather-sexed. Feather sexing only works when you use a genetically fast-feathering roo over a slow-feathering hen and is usually only seen in production breeds like White Leghorns. It's a myth that it can be used for all chicks.
For future reference, your chicks couldn't have been feather-sexed. Feather sexing only works when you use a genetically fast-feathering roo over a slow-feathering hen and is usually only seen in production breeds like White Leghorns. It's a myth that it can be used for all chicks.