It can happen but not on a regular basis as most hens lay every 26 or 27 hrs.
A condensed Quote from Storey's Guide to Raising Chickens by Gail Damerow in the Layer Management chapter under Egg Formation,
"A pullet starts life with two ovaries, but as she matures the right ovary atrophies and only the left one develops to maturity. The functioning ovary contains the 4,000 or so undeveloped yolks, or ova, the pullet was born with. -----
When a pullet is ready to lay, one by one the ova mature, so that at any given time her body contains ova at various stages of development. Approximately every 25 hours, one ovum acquires enough layers of yolk to be released in the oviduct, a process called ovulation. Ovulation usually occurs within an hour after the previous finished egg was laid. -----
The whole process takes about 25 hours, causing a hen to lay her egg about an hour later each day. Since a hen doesn't like to lay in the evening, eventually she'll skip a day and start a new laying cycle the following morning. The group of eggs laid within one cycle is called a "clutch." Some hens take more time than normal (say, 26 hours) between eggs, and therefore lay fewer eggs per clutch than a hen that lays every 25 hours. Conversely, some hens lay closer to every 24 hours and so lay more eggs per clutch."------
So if your hens are laying more than one egg a day on a regular basis they are not normal and there is something definitely wrong.
If you do research even here in this forum you will find that where people have birds that lay more than once a day usually one egg is not completely mature or they skipped a day and happened to double the next day. This is generally thought to be that the first egg was egg bound and didn't come out until another happened to push on it. A normally happy healthy hen simply doesn't lay more than one egg a day.
A condensed Quote from Storey's Guide to Raising Chickens by Gail Damerow in the Layer Management chapter under Egg Formation,
"A pullet starts life with two ovaries, but as she matures the right ovary atrophies and only the left one develops to maturity. The functioning ovary contains the 4,000 or so undeveloped yolks, or ova, the pullet was born with. -----
When a pullet is ready to lay, one by one the ova mature, so that at any given time her body contains ova at various stages of development. Approximately every 25 hours, one ovum acquires enough layers of yolk to be released in the oviduct, a process called ovulation. Ovulation usually occurs within an hour after the previous finished egg was laid. -----
The whole process takes about 25 hours, causing a hen to lay her egg about an hour later each day. Since a hen doesn't like to lay in the evening, eventually she'll skip a day and start a new laying cycle the following morning. The group of eggs laid within one cycle is called a "clutch." Some hens take more time than normal (say, 26 hours) between eggs, and therefore lay fewer eggs per clutch than a hen that lays every 25 hours. Conversely, some hens lay closer to every 24 hours and so lay more eggs per clutch."------
So if your hens are laying more than one egg a day on a regular basis they are not normal and there is something definitely wrong.
If you do research even here in this forum you will find that where people have birds that lay more than once a day usually one egg is not completely mature or they skipped a day and happened to double the next day. This is generally thought to be that the first egg was egg bound and didn't come out until another happened to push on it. A normally happy healthy hen simply doesn't lay more than one egg a day.
