Hi I wonder if you can help. First time of hatching chicks. Need to know what sex these are. They are 3 weeks so I know it is early days. Problem is living in a residential area we can not have cockerels and don't want the school children to get attached to them. Chick 1 - Chick 2 - Chick 3- Chick 4- No idea the breed either!! Thank you in advance.