Mystery hens #2, #3, #4: I think Easter Eggers. If they lay blue or green eggs, you will know for sure.
Mystery hens #1 and #5: I'm not sure as sure about them, but they might also be Easter Eggers.
Old English Game: might be. I'm not good at recognizing that breed, and they come in SO many colors. Definitely a male, and if he's mating with hens, then he's old enough to be a father.
Sebright roosters: yes, that's what they are. And yes, they are hen-feathered.
Sebright hen: she's definitely got the wrong kind of comb, but I cannot think of any other breed she could be. Rose comb chickens do occasionally have single comb chicks. Don't enter her in any poultry shows, but otherwise it's not a big deal. If she mates with a rose comb rooster, either half or all of her chicks will have rose combs. But they will carry the gene for single combs, so they might produce chicks with single combs. If anyone wants to breed chickens that look like Sebrights but have single combs, this would be a good starting point!
How to tell if a rooster is hen-feathered:
Look at your Old English Game. He's got feathers that droop just in front of his tail. They have pointy ends--that is rooster feathering.
Now look for the same feathers on the Sebrights. Those feathers have rounded ends--that is hen feathering.
Now look at the same place on a hen. Her feathers have rounded ends too-- that's why it is called "hen" feathering.
I don't know about Sebrights specifically, but roosters of any rose comb breed tend to be a bit less fertile than single comb roosters. It matters when you have hundreds of hens and a few roosters. If makes no noticeable difference when you have just one male and only one female. The exception is the roosters that have rose combs but also carry the gene for single combs: they are just as fertile as single comb roosters.
About broodiness: bantams in general are prone to going broody. Some individuals will, and some will not. It can happen at any time of the year, but is most likely to happen in the springtime. So keep your eyes open next spring!
Mystery hens #1 and #5: I'm not sure as sure about them, but they might also be Easter Eggers.
Old English Game: might be. I'm not good at recognizing that breed, and they come in SO many colors. Definitely a male, and if he's mating with hens, then he's old enough to be a father.
Sebright roosters: yes, that's what they are. And yes, they are hen-feathered.
Sebright hen: she's definitely got the wrong kind of comb, but I cannot think of any other breed she could be. Rose comb chickens do occasionally have single comb chicks. Don't enter her in any poultry shows, but otherwise it's not a big deal. If she mates with a rose comb rooster, either half or all of her chicks will have rose combs. But they will carry the gene for single combs, so they might produce chicks with single combs. If anyone wants to breed chickens that look like Sebrights but have single combs, this would be a good starting point!
How to tell if a rooster is hen-feathered:
Look at your Old English Game. He's got feathers that droop just in front of his tail. They have pointy ends--that is rooster feathering.
Now look for the same feathers on the Sebrights. Those feathers have rounded ends--that is hen feathering.
Now look at the same place on a hen. Her feathers have rounded ends too-- that's why it is called "hen" feathering.
I don't know about Sebrights specifically, but roosters of any rose comb breed tend to be a bit less fertile than single comb roosters. It matters when you have hundreds of hens and a few roosters. If makes no noticeable difference when you have just one male and only one female. The exception is the roosters that have rose combs but also carry the gene for single combs: they are just as fertile as single comb roosters.
About broodiness: bantams in general are prone to going broody. Some individuals will, and some will not. It can happen at any time of the year, but is most likely to happen in the springtime. So keep your eyes open next spring!