Why do hens lay eggs most days and other birds don't?

Basically because their eggs are removed daily. If you leave a hen with eggs, she will stop laying, go broody and try and hatch them. The same thing happens to ducks and geese kept in a domestic/farm environment.

Hens begin laying at 18 – 20 weeks of age and a healthy chicken will

lay about one egg a day. A hen does not need a rooster to lay eggs

and eggs are produced in response to day light patterns. The eggs we

buy in the store are not fertilized (they don’t hatch). The size of

the egg is dependant on the age of the hen. Older birds lay larger

eggs.

I own a egg farm. There are some breed of chickens that are not good layers. It is important for a hen to have the nutrients that are needed for the formation of the egg itself. They are given "laying pellets" in the feed, and there are always roosters present. Yep, they still need a "man", it is their form of reproduction. In a house with 20,000 hens there are usually around 250 roosters. ;)

isn't laying eggs part of a sort of 'menstrual cycle' for a bird? maybe a chicken has a faster or more frequent cycle than other birds, after all it varies for humans, too. my ducks lay once a day, though. what birds are you thinking of?

lol just an idea.

hens lay eggs daily because humans bred them to do so

Chickens are bred to do that. Farmers would breed the fast-laying chickens the most and eat the unproducing ones. this was repeated for a long time until *poof* the perfect egg-laying chicken.

thats interesting!.... idk

humans have probably genetically altered them to do that somewher along the line .. i bet.

oh well eggs are gooood!

hi

its called selective breeding...

this is when they are "selectively" "bred" to lay healthy and fast eggs.

Hope this helps

all birds lay eggs!

they have been bred that way. naturally they wouldn't lay that regularly.