Unlike the cockerels, male quails do not crow. Males tend to get a lot of bad press for being aggressive - however most male quails are friendly. There are however some advantages to having a male quail in your flock:
1. Males tend to be the most friendly - Male quails tend to be more relaxed around people and will often be more likely to come and say hello.
2. Males can help reduce bullying - Having a male around can make your quail more relaxed. The male can reduce the chances of bullying in your flock and ease the introduction of new birds.
3. You can hatch chicks - If you wish to hatch a quail from an egg it is necessary for eggs to be fertilised and then incubated. Hatching your own quail allows you to add new birds to your flock without having to buy them. Interestingly fertilised eggs are low in cholesterol and unfertilised eggs are very high in cholesterol.
Maia, 5 August 2019
Coturnix female quails DO lay eggs without a male. And there is no difference in egg production from what I know.