WHY I DON'T LET MAMA POST ON MY PAGE! 👩🏼I promised some peeps that I'd do a post on egg-binding (difficulty passing eggs, which can be fatal) and chronic egg-laying (laying too many eggs/laying too often, which can lead to egg-binding) rather than trying to answer each person individually. Instead of one looooooooong post, I'll do several mini-topics, starting with inexpensive methods that don't require vets or medication. So here we go.
PHOTOPERIOD: A big word that quantifies light exposure. This is important for many reasons. Think about how much light pollution most of us have in our environment, even at night: street lights, appliance LEDs, alarm clocks, nightlights, vehicle headlights, our various smart devices, TVs, laptops... It's bad for peeps, and it's even worse for birds.
Birds receive light in two ways, visually (like humans) and via the pineal gland, which is located in the top of the brain. In birds, light actually penetrates the skull, affecting melatonin release from the pineal gland. Melatonin is a hormone that regulates sleep cycles, and may also influence stress levels and immune functions. Melatonin release increases as light decreases, inducing sleep. Artificial light interferes with melatonin release and can lead to sleep deprivation. Do you have a cranky, snappy bird? Quantity/quality of sleep may be a big part of the problem. Birds did not evolve to live in a house with noisy humans and glaring lights interrupting their sleep for half the night.
Photoperiod also affects the hypothalamus, which regulates the pituitary gland. The pituitary gland regulates growth hormone, the thyroid, and gonad development, including: EGG PRODUCTION.
Many studies have been done on avian response to light duration/intensity. Why? Because those things affect feeding, maturation, and reproduction: primary interests to breeders and the poultry industry. There is a LOT of money behind these studies. Most birds begin nesting in spring, as days get longer. Extended photoperiods, including artificial light, can cause hormonal overstimulation in birds. Their little bodies think it's spring/summer ALL. THE. TIME.
Post continued in comments.