A coop with lots of light and ventilation is nice for chickens. There are many solutions to achieve that. And what is needed differs depending on the time of year and the climate in which we live.
I myself have more or less accidentally gained experience with an extremely light and airy coop for my chickens because I created an extension on the small ready-made coop / run combination.
Initially I made an extra run on the right side of the existing run with a lot of hardware cloth (1/2 “) . The east side had only hardware cloth and the north (cold) and west side (wind and rain) hardware cloth near the ground an wooden panels under the roof. The south side is connected to the run of the existing loft.
In the expansion I made a go through to a less safer run (covered pen). I made 2 roosts in the expansion. Intended for a moment of rest during the day.
The chickens roost there now, not only during the day but also at night. They find the expansion much nicer to sleep in as the little old coop.
When it became winter I closed the mesh with transparent plastic and wood. The following year I bought a second-hand window with window glass to put in front of the east side.
Near the ground the glass window has hinges. This way I can open the window at the top (under the roof).
In the summer there is a lot of ventilation. In winters I close the ventilation, but the south side stays open.
The chickens get a lot of healthy sunlight as soon as the sun rises in the morning.
Only 2 young chickens prefer the old coop cause they don’t like to argue with the older hens.
And now I am just curious if any of you use windows with glass for happy chickens? What are you’re experiences?
I myself have more or less accidentally gained experience with an extremely light and airy coop for my chickens because I created an extension on the small ready-made coop / run combination.

Initially I made an extra run on the right side of the existing run with a lot of hardware cloth (1/2 “) . The east side had only hardware cloth and the north (cold) and west side (wind and rain) hardware cloth near the ground an wooden panels under the roof. The south side is connected to the run of the existing loft.
In the expansion I made a go through to a less safer run (covered pen). I made 2 roosts in the expansion. Intended for a moment of rest during the day.
The chickens roost there now, not only during the day but also at night. They find the expansion much nicer to sleep in as the little old coop.
When it became winter I closed the mesh with transparent plastic and wood. The following year I bought a second-hand window with window glass to put in front of the east side.
Near the ground the glass window has hinges. This way I can open the window at the top (under the roof).
In the summer there is a lot of ventilation. In winters I close the ventilation, but the south side stays open.
The chickens get a lot of healthy sunlight as soon as the sun rises in the morning.
Only 2 young chickens prefer the old coop cause they don’t like to argue with the older hens.
And now I am just curious if any of you use windows with glass for happy chickens? What are you’re experiences?